To the downvoters: if we don't also manage to improve neuroplasticity decrease in old age as well as breaking generational cultural norms, we're doomed, don't fool yourself. Especially since older people are politically more active, as a group.

Everything is a trade-off.

On one side, old people are less likely to support new trends, starting with fashion and ending with political causes.

On the other side, they carry a lot of experience. If a sizable minority personally knows the misery of war or hyperinflation, repetition of those miseries becomes less likely. Plenty of political criminals built their careers on naivete of the young.

I think that we will end up with the best of both worlds eventually. If longevity tech succeeds, brains will stay young, but memories will accumulate regardless.