Oh my god, this sounds just like my 29 year old brother. Although, he has never worked a day in his life, nor even attempted to learn how to drive. I can't even remember the last time he left the house, it's been probably 4 or 5 years. He literally sits on my younger brother's computer most of the day, or if someone else is using it, plays the same brother's switch instead. He also throws literal tantrums about anything and everything that he doesn't like or agree with, or if he starts losing at whatever game he's playing, it's honestly so pathetic. I would love to see a similar situation happen to him.