That sounds tricky Noah. DH and I were talking about a similar move today actually, and he made the same point, in that it would affect me more than him, as he'd be at work whereas I would have to go out and make friends. I think its easy to get bogged down in wondering how hard that would be, when actually people move all the time, so it can't be impossible, especially when you have school age children. Its still daunting though, and having moved from London up to where we are now, knowing no-one, five years ago, I'm not sure I would want to do it again.
But, York is lovely, so there would be worse places to go to. And, the other thing, whatever you decide, you have already done one of my things to do before I die, which is have a lovely red aga !
DS has been off today for eye appointments, and is already upset about going to school tomorrow . And DD now knows how to spell a s b e s t o s, which is nice, particularly as they have just found a whole load at her school .