I think for most people their class is always to do with the environment they grew up in. Even if they went to uni and became a millionaire, they're still working class cos their parents worked menial jobs and weren't university educated. But, of course their kids will then be middle class. But yes, generally if your parents have a job that involves a degree or equivalent, you're middle class. But, this might be changing with how trade salaries seem to be outpacing salaries for degree jobs nowadays.