My little brother has a friend who's a year older than him(he lives in our neighborhood), and his friend is totally stupid and immature about some things. He can never fess up to the things he does and lies a lot. My little brother is sensible, dedicated, determined and sweet. Granted, he can be a baby about some things(e.g. Looking for something, getting breakfast/lunch, opening things, ect.) but he is very mature for his age.