A school contacting a kid doesn't mean they're all that interested. I know you're not making them up, but none of them are concrete offers or serious. The schools that seem to be in the mix for Carr are Minnesota and Marquette. Neither is very stable or attractive. Michigan has Carr as an option B or option C, if nothing else works out. So forget them. None of the others are probably in the mix.
Stewart has no offers and those are the schools who may or may not have contacted Stewart. But since Stewart can't play defense, I doubt many will have serious interest, at least not the high level ones. I wouldn't be surprised if Stewart ends up at a smaller P5 school or lower.
The grass isn't always greener on the other side. Both players may end up regretting this. That's why I said they better go somewhere where they can get a real degree in something where they are employable. They won't be playing basketball much longer on any level and they'll need jobs.