And we need to be assuming incapability after a certain age, until proven otherwise.

When a senator turns 75 or 80, they should be automatically retired unless they choose to prove their capability,

We don’t do that with older pilots, that’s discriminatory to do it to them or anyone else. We’re a nation of innocent until proven guilty.

Just give them a yearly cognitive test, that should waive any concerns someone would have.

with public oversight of the test results.

Definitely this. If there’s ever one group of our society that would try to get around the rules for their own benefit it would be politicians.