Hi! I’m MIT Class of 2019, so I just finished the MIT application process last year.
Firstly, DO NOT USE THE MIT NET PRICE CALCULATOR!!! That thing is almost never accurate. It told me I would have to pay $50k/yr and I paid significantly less than that and I’m an only child (schools adjust if you have siblings). Almost everyone else I know from my year didn’t end up paying what the calculator said. And that goes for my friends at other schools like Princeton, Duke, Caltech, and so on. That being said, depending on many factors, definitely consider finances. And way to go for your parents for saving! That’s awesome!!!
Secondly, it’s not too early to start thinking about particular colleges, but tread carefully. While your brother and your family shouldn’t fixate too much on MIT (as stated in the past comments and you yourself agree), it’s ok to get into it. MIT itself is all about appreciating learning and doing amazing things to better the world and who doesn’t need to be exposed to that?!
Personally, I was one of those knee high kids mentioned previously; I fell in love with MIT at age 8 and it became an obsession. I’m a first generation college student, so my parents were panicked because they never saw MIT in the cards for me. My family was so sick of me talking about it that when I actually got in MIT was made a taboo word in our house and now it’s just “my college”. But they’re super happy I got in. And they knew more MIT facts than any of the parents at CPW because of all my ranting!
By the time my senior year came, though, I was more realistic and I found that I was ok with not getting in (fortunately I did), because I would end up somewhere great. A lot of people I’ve met have expressed this sentiment, so as long as you and your family support him, he’ll be fine. When the actually time to apply comes around and when it’s all over and done, you feel a lot more calm than you’d expect. Sure, tears might be shed, ice-cream will be eaten, but you can still have a great senior year and can still go somewhere great. A lot of my friends had this experience. My physics lab partner was gunning for Stanford since freshman year and rejected, but he fell in love with Carnegie Mellon and is counting down the days to go there.
As far as what to do in high school, passion is key. And it doesn’t have to be STEM, necessarily, but you need something that you’re very dedicated to. His interviewer should be able to tell he loves it. And he will find this thing on his own. Trust me.
I wasn’t involved in a ton of STEM stuff, my school wasn’t strong in it, but if he’s into robotics there’s a lot of inexpensive kits and projects you can do. Lego robots, Scratch, Arduino come to mind, but there are more. Also Coursera and Codecademy are fun and free! And MIT OCW! The point; MIT (or any other selective college) would never punish an applicant for not having activities available to them, but taking initiative is important in college admissions and in life.
And while I know you’re going to want to support him (and that’s super cool btw), he does need to do a lot of it on his own. He needs to put in the extra time and effort to find activities and opportunities and things to learn and grow upon. He needs to know what tests to take, discipline himself to study, make appointments with his counselor to arrange a challenging and engaging schedule, etc. Furthermore, research is key. mitadmissions.org is an amazing and must read resource for people who want to know more about MIT; he should definitely read the blogs and follow the links to the various MIT group sites and lab projects to see if he really likes the community there.
So as far as supporting him; be open and accepting of whatever he’s passionate about. Make sure he knows he will be fine no matter what happens and make sure he eats breakfast before testing because being that kid with a stomach growl during the ACT is not cool!
Good luck to your brother!