I think it's just the cycle. I'm an old coot born in the 60's. When I was young I lived 4 people in a house and drove an old F150 pickup. When I got older, got money, bought things realized that it really does not change things and now I'm down sizing and giving things away and still live 4 people(kids) in a house. It just's the way human nature is which some don't grow out of but I don't think you can pin point that accurately. Your mileage may very (YMMV)
