providing advice

They do, it's called the republican party and conservative think tanks.

supporting children and parents

I mean other than your own family, why would you do that? Sounds like extra work when you want to be retired.

spreading their community’s history

That's called Facebook, it exists. That's where they spread their conservative politics.

You seem to think that old people would be interested in any of this. Most wouldn't. They're loaded, they can live like kings without being bothered by a bunch of young people. Why would anyone want to put in extra work when they don't have to?