How about letting everyone decide for themselves how big their house should be? I believe that a family with a 30sqm kitchen-living room is just as happy as a family with a 50sqm kitchen-living room. What matters much more is how you live together and whether you can afford it or not. If a big house unnecessarily burdens the family budget, then the family doesn’t benefit from it either. Especially as a child, it’s nicer to occasionally do cool things and have a 15sqm room for that, rather than never being able to do anything but having a separate playroom. We never had money either and sometimes lived in very cramped spaces. Mom slept in the living room, etc. But as a child, that really didn’t make me any less happy. On the contrary. Mom was always there and spent every € left over on us. So we were able to afford going to the cinema, bowling, or a small trip from time to time. When I look around, unfortunately, I observe the opposite more often. That the well-off children are often unhappy because the parents simply shower them with material things since they have no time anymore. Of course, that’s not always the case and there are always exceptions, but you’re seeing that more and more. What I want to get at is that you shouldn’t generalize this. Everyone should be able to build the house that fits their budget. Everything else doesn’t make sense. And if it’s a 5sqm bathroom, that’s nothing to be judged for. I’ve lived in student shared apartments with a 3sqm bathroom for 3 people. You’d burn your knees on the heater when you sat on the toilet. But it worked and was one of the best phases of my life.