You're getting downvoted for being flippant but your point is valid. Turns out this family made a big life choice that they couldn't afford and now the reality

You're getting downvoted for being flippant but your point is valid. Turns out this family made a big life choice that they couldn't afford and now the reality is setting in, if you can't make ends meet on that salary your expenses need to be reduced, so move. No one deserves to live in London, if it's too expensive move or structure your life in a way that is affordable. Hence why I choose to live in the North East of the UK (and before people say "the salaries are lower" - no they are not for engineering)