So we have someone who didn't play his guitar because it was in another room. And someone who spent 3 hours per day watching a sitcom on netflix. And you wonder why he is living in a van?
Watching Netflix for a few hours in a row and having an instrument you don't play as much as you should are incredibly common experiences. I don't know how you extrapolate that into some sort of mental illness or moral failure that leads to living in a van. I don't think he was literally too lazy to go to another room to play his guitar. It's just a way of saying that when you have a big house and a lot of stuff you can lose track of things you used to find important and fulfilling.