Isn’t the point of democracy to align governments with the things people care about? To rely on self-centred voting averaging out over the whole population?
It's might be a kind of "expectation" outcome of one-man-one-vote, but it's not the point of democracy, IMO. I doubt it even has a universally agreed upon point beyond letting everyone participate. But averaging out interests, which is a sensible starting point, indeed requires that everyone gets to vote, old people included. The problem with "averaging out" interests is that the interests of minorities can get ignored for a long time. If that was the parent comment's point, it might have been formulated a bit better.
