I wasn't blaming you for anything, Lilu. And I'm sorry. But, how about if anything like this happens again - and I'm not saying it should, or that it definitely will, but we have to consider that something like this might - I'll be the one to watch out for whoever it is. If it's my house then it's my responsibility. As well as the responsibility of whoever brought them in.
I'd really rather they stay here, but I don't think we can force them and I understand if someone goes with them. They shouldn't be on their own no matter how smart they are for their age.