Not everyone who lives at home with their parents are the same and in some cases it does make sense,
but from my observations of people who live at home:
- No skills on managing self: relies on parents to manage
- No financial management skills: using all your money for play money and not contributing to the household.
- Can't take a date home: unless you want to introduce your parents right away
- ManChild Syndrome: grown kids playing video games and watching tv.
- No drive: as long as you have parents, why try. Everything is already provided for you.