I think this is just something that changes over time. Could I spend every single waking moment of my life (aside from work) playing Zelda? Sure, I guess. Will I? Nah. Not because I can't, but because as I grew up I realised there are more important things to experience in life other than 24/7 escapism. I will still play and enjoy it, just not in the extreme way that I would if I was still a teenager.