I hate these labels. "Momma's boy, daddy's girl, favorite grandchild of all time." They're all so arbitrary. So because I have a close relationship with my mom and grandmother we need to do sociological studies to discover what's wrong with me?

Feh.

Frankly, the people who are "momma's boys" and live at home all while not doing anything with their lives are just codependent coddled adultchildren. Nothing more.

"Those who stayed close to their mothers through their adolescence were less likely to engage in delinquent behavior and developed stronger relationships with their best friends."

That's probably because they're not jerks. I tended to find as I got older that the folks who weren't jerks had good relationships with everyone. Their parents were just a good litmus test because you're around them every day.