Socks on the mantlepiece: should I be upset?

:D My son genuinely sees no problem with having dirty clothes strewn all over the floor, or having a wash area which smells like a particularly unhealthy swamp. He is perfectly happy to live like this. I think most of his age group feels the same way. I went to see my step-son's new flat the other day. He was quite content to show us around a bedroom which looked as though a small explosion had taken place in the middle of the floor. In a way, I'm envious. Think of all the extra time you'd have if you genuinely didn't care ...