Imagine trying to raise your kids to be independent human beings when they can't walk to the shops, can't visit their friends without mummy or daddy driving them, and can't take the bus to the local swimming pool/cinema/library/whatever.
Anyway, try not looking around London, it's not the only city in the UK, believe it or not. And I mentioned rent rather than purchase price. Nobody in my social circle can buy in either the US or the UK.