...
Admittedly the only 20 y/o's that would want to be in parliament would be those who ...
... have always wanted to be in politics and have known nothing else. ... bellends at best and sociopaths at worst.
Because they've known nothing else they've spent their whole lives in a bubble cut off from the real world ...
...
and therefore have no idea what it is like to be a 20y/o ...
What makes you think being a 20 y/o qualifies anyone to know what's good for 20 year olds?
There might be some who do, but the mere fact of them being the right age group doesn't mean anything.
Politicians don't have to be what they're sorting out and they don't have to have experienced the problems they're trying to fix - all they need is empathy.