The problem is that as people age, they often can’t - or don’t want to - handle the work of maintaining a house.
We are facing this kind of decision in a few years; I’m thinking of a condo.
There is no shortage of peeps/local companies that can be hired to do the upkeep/maintenance one no longer wants to do.
Losing a spouse makes the equation different...
Condos probably make sense for older folks. I'm in my 50's with a refurbished colonial on a good chunk of property that somehow always needs more refurbishing. It's constant work but it's all good. Still, I can't imagine wanting to be raking, snow plowing, tending the gardens, chopping wood, painting, repairing fences, mowing lawns and field, taking care of the chickens, etc. twenty or thirty years from now.
Then again, it might be boring sitting in a condo with people living right next to, or on top of you. Maybe RV?