It never hurts to bring younger sibs. When my oldest went for interview at Choate, the ADCOM asked if my younger (by 2 years) also wanted to inteview. She said yes. He met with her and started a file. 2 years later, she interviewed with another adcom. But I think it helped that she showed her own interest much earlier. No harm bringing sibs anywhere and it may actually help.
Revisit days are designed for incoming students and parents. If you need to bring younger siblings, I don’t think anyone at the schools will object but I don’t feel they really have a place there and are likely to be bored. They should definitely stick with parents on the day’s agenda not their sibling.
If the option to stay with a family friend or relative is there, I would go with that. IMO, it is different from an initial visit with a tour and interview.
IMHO Any opportunity for younger sibs to experience the school is helpful. Revisit days are often when the BSs are at their best. I don’t think younger sibs are necessarily out of place. Funny though, when older’s younger sib left the chapel at a revisit, we overhead the staff saying “They get younger and younger every year.” haha, she thought younger sib was the new freshman. I don’t see any problem. Gives the younger ones something to aspire to, and work harder.
I’m with @doschicos on this. If you have to bring a sibling and you have no choice, well, you’ll have to make it work, and the school has no doubt seen it before and should be gracious. And not all revisits are the same. At one school, it involved a nice little welcome, then the students went off with a student to shadow a class or two while the head and some faculty talked to parents, then everyone came together for a reception with a few groups of student performers. I think that although it might not have been the happiest couple of hours for a 10 year old, but it would certainly have been tolerable.
At another school, the students either came the night before or met their shadow before 8:00 and spent the day until about 2:00 at events designed especially for them, in classes (often picked to meet their interests), in the dining hall, etc… The parent program lasted just as long with a series of options that involved presentations/panels/conversations by college counseling, the science departments, athletics, a lunch, programs on service learning, programs on residential living, programs for day students, etc. and during which times many resources – everything from students, faculty, current parents, coaches, nurses, nutritionists, etc. – were made available to parents. At 2:00, everyone reunited for a closing program. Many people stayed for athletic practices, games, etc. Honestly, I think it would have been AWFUL for a younger sibling because there was very little in that program that was pitched at anyone other than a parent, and that was not a “we’re so great at this and hope you’ll apply” pitch but a “here’s how this works here and what can we tell you about it that will help you and your child decide if this is the place for you”. Personally, I loved that day because I felt like the school was so transparent and so understanding of the kinds of concerns parents had, but I don’t might have come away feeling quite different if I’d also been trying to keep a 10 year old happy.
Remember that the purpose of revisit days is to allow students to formulate an idea of what it would be like to be a student at this school and to answer questions that parents have that might impact that decision (or inform how they feel when they send their kid off in Sept.) This is not, IMO, the right environment to introduce a young child to BS. It is not an open house, a tour, etc., although there may be some elements of that in it. IF you have the option, at least check to see what the programming is before deciding that it will inspire a younger child.
Some of those panel discussions could include topics that are very much PG-13 as well such as discussions about the school’s discipline policies on drugs, alcohol, sexual intimacy. Very important stuff to know going in as a parent. Might not be something little brother or sister wants to/should hear.
Also worth noting that if younger sibling does tag along, they will be VERY much in the minority based on my experience attending many revisit days, both with my own kids as well as assisting with other visit days as a current parent asked to help by the admissions office.
@MA2012 thank you. I just wanted to make sure it wouldn’t be a problem.
@Toosaucy If we had had any revisits this week or next, we would have had to bring our 10 yr old…clear across the country. But since mandatory state testing is at the same time, DH doesn’t get to go to revisit & stays home with younger sibling. But we would’ve made them sit through parent activities- which, as @preppedparent had, younger sibling has decided BS is the way to go, too, so it would’ve been a good experience overall, I think. Depends on the kid…
We saw a lot of siblings for revisit. I didn’t hear too much sex, drug or rocknroll, where younger sibs couldn’t hear. You can always pick and choose what they attend based on agenda, but these are not the common topics, and I’ve been to many revisit days also.
@momof3swimmers how did the Andover revisit go? We will be attending April 3rd. So far, have only gone to Cate revisit (9am-7pm) including dinner on the beach for the kids - a very long day! Our East coast visits start in one week with Andover, Deerfield, Middlesex, Choate, and SPS. Interested to see others’ perspectives on these schools. Regarding siblings: saw a few at Cate and it didn’t seem to be a problem - they stuck with the parents, so they sat through some questions regarding how sexual intimacy is dealt with at the school…
“including dinner on the beach for the kids”
Well, this won’t be happening at the New England schools although technically St. George’s could, just might be too chilly. 
@doschicos that statement made me do a double take, as well! Dinner on the beach. Wait-what?
It’s too cold still for a NE Clam Bake, but when my daughter was accepted to St. George’s, there’s a clam shack close by within walking distance called, Flo’s. She said she’d be there every day if she had gone to St. George’s and would have gained the freshman forty, not fifteen. Still, if you are in the area, stop by. I’ve been going to Flos in Portsmouth (the original one) for the last 50 years. The clamcakes and fish and chips are among the best in the world, though the ones in Scotland were pretty good too.
I’ve been to Flo’s many a time. Always enjoyed the St. George’s visits for sports team outings. Lovely campus and stuffies and clambakes afterwards at Flo’s!
On siblings – I asked when we registered for the revisit. Both schools where we originally scheduled them said DS#2 was welcome to join us. We will have to be on the road very early Friday, so it was just complicated making arrangements to get DS2 to school. He’s in 6th grade and will be a bit bored but fine hanging with us.
And yes, anyone headed to NE later this week and next, bring your rain boots and woollies – most of the snow is gone (at least in CT and MA), but it’s cold and will be rainy off and on for the next 2 weeks.
@CTMom21 :(( Texans hate cold & wet!!! (Stomping my feet for full effect…lol)
@buuzn03, don’t be dismayed by how ugly it is this time of year (unless you are lucky and get some sunshine). Between picturesque winter and beautiful spring, there’s a period when it’s just grey, damp, piles of dirt encrusted snow everywhere…but it gets better. This year the BS kids were all on spring break for the worst of the NE weather.
@CTMom21 it is mud season there…black flies, melting snow…ew. My husband is from Lebanon, NH…I got enough of that stuff up there! Now, he complains more than I do about cold and wet! :)) I guess that is why we planted ourselves in the desert. Just sand and tumbleweeds!!! B-)
Too early for black flies. They are a May/June thing. In much of New England we are very much still in winter even if the calendar tells us it is spring. It’s a balmy 36 degrees right now.
@doschicos everyone will know I’m from the south when I show up! I’ll be bundled up in my North Face parka like a cocoon! =))
@buuzn03 The visual I got from your post made me think that even though it’s kind of corny, I recommend taking a family selfie plus a solo shot of the kid during revisit. Fun memories of milestone moments.