Parents and Grandparents might not be interested in starting families, but they're interested in their (grand)children starting families. Ideally, that's where their wealth would go, except that it's being completely obliterated by retirement and end-of-life care.

If that were true, US policy and trends would reflect that. Instead, as groups, we are seeing earning potential decreased in the young and wealth increase in the old. This is a dysgenic shift. Coupled with AI, which when viewed as a force against labor is a product that reduces the earning potential of the young cohort as a group, this is not sustainable. The lack of stability and opportunity for young people is the sort of stuff that leads to revolution.