Young people generalize everything and end up not solving problems.

Older people have already seen all the patterns, and realize you have to focus on specifics, and that helps clean up the general issue.

The old people's tolerance for general problems is why the general problems persist.

A realistic dynamic is the old people are comfortable with the general problems and have positioned themselves to benefit from them. Indeed, they solved the general problems that troubled them in their youth with political activism in their middle age. The young people have different political needs that require general problems to be solved.

Also young people have a terrible track record of actually identifying problems, they are pretty clueless in the main.