Besides social condemnation(screw them, i dont give a damn), this has nothing but benefits.
Moms do all your cooking.
Moms do all the house work and laundry.
You can always quit any job you don't like after trying it out for 5 min without the fear of bankruptcy, mom will keep feeding you.
You can spend many years of doing nothing but sitting in front of your computer, playing games and sleeping.
any other manchilds here?