He anticipates that his needs will be met and that he will be pampered whenever he so desires. He is content to take, but he will never give.
It is possible that he will throw temper tantrums or stay up all night partying with people who are ten years his junior.
Former associates of his eventually turn out to be his rivals or new companions.
It may take him up to six months before he decides to invest in a new couch.
The majority of his so-called "friends" are actually just his mother and random people he meets while out playing or partying.
He expresses indirect hostility through subtle insults, sullen behavior, stubbornness, or deliberate task neglect.
He will put up a fight against doing anything that is even marginally inconvenient for him.
He wastes a significant amount of money on playing games, going to parties, and pursuing women.
If he is unable to find another scapegoat, he will blame his mother and everyone else in his immediate environment for everything that goes wrong in his life.
She's his closest friend. Even though he's grown, she worries about him. She may buy his clothes, groceries, and laundry.