I'm not going to limit my University choices just in case something like that happened.
If a situation like that does present itself to me, I'll just have to work out a way to resolve it. I'll either stick it out, put up with the bitchiness and live in the flat that I'd paid for, or I'd contact the University people and see if they couldn't do something about it.
It would be a life lesson. I don't want to be on a permanent tether to my family, I want some freedom and to be responsible for myself.
The world's tough sometimes, and you can't always rely on the fact that your Mum's around the corner.