Okay, I have this loser all figured out.
His father probably left his widow, the loser's mother, an estate, if not affluent at least reasonable.
The loser is obviously a mama's boy, especially because of his "handicap."
To prove her love and devotion for the poor child, she entrusted dear Matty-boy with taking care of her money.
Matty-boy squandered it all, possibly thousands of dollars, on computer games and toys.
When the money ran out, instead of chastising him, mama assured him it was okay, in the manner of all mamas with mama's boys.