Every time I think I grasp the expansiveness and wealth of the US, something comes along and whacks my concepts. In the Asian cities where I live, the well off

Every time I think I grasp the expansiveness and wealth of the US, something comes along and whacks my concepts. In the Asian cities where I live, the well off live in condos where a 100 houses share a pool and the area occupied by a 10k gallon pool would be as big as a third of the house. I'm not sure these solutions work for even the well off in most parts of the world, let alone common people.