Cuz the dude's a loser in life? Also that motherfucker probably has cheats. If he doesn't have a cheat, he would probably do what you propose and be a normal person with a wife, some kids, a house of his own and proper saving. Which is a lot better than staying on this planet.
... Ok, I am not a hikikomori like you. Also, I don't have a gaming anything with me but my phone and my room is a literal storeroom, so I enjoy the open space. I hate people. That is a crutch for me as I write stories and find myself quitting due to human interaction.
I'm writing a story where the character is talking to strangers and I'm getting anxiety already even if I'm writing it in the comfort of my room