How long can a 12 year old Babysit?

I think that this all depends on maturity. If you are twelve, you should be able to look after at least 3 children but you should never babysit more than 5 kids unless you are old enough to. Then again, if the family trusts you with 5 kids because they know you are practical, responsible and caring, you should be okay. Be sure to check with your arents before you babysit anyone, though!!