It’s interesting that one poster’s child liked info sessions but not tours. Our family was the reverse. We have truly enjoyed every tour we have been on so far and found them very useful-- but have stopped scheduling info sessions, because while a couple had students speak or otherwise had something original, most of them did not teach us a single thing we had not already learned from the website, brochure, catalog, etc.
We look forward to more tours, but no more info sessions!
I think that, if your children are not enjoying college visits, maybe they are not ready for them yet. I know my son wasn’t ready to really embrace the college search process until August before junior year. Then he got into it. Your twins are young yet, so they have plenty of time.