I’ve never seen this issue discussed in the context of the much-reported shortage in housing units in the US. Houses are bigger while families are smaller. Thus

I’ve never seen this issue discussed in the context of the much-reported shortage in housing units in the US. Houses are bigger while families are smaller. Thus, it might make sense for children to live at home longer. I’m people generations the kids get kicked out to make room, and also the kids were having kids of their own earlier. Maybe there is less political and market pressure to build affordable, smaller houses because the larger house size and smaller families simply reduce the true need for additional, cheaper, smaller units.