Was my brother right in the situation?

Even my brother used to do all such things when i was at teen age, at that time i felt the ame way like u. But now i feel he was right else i would not have acheived so much in my life. At teen age we never know who is right who is worng we judge person only on their looks, but i was not into any love..He is your brother if somethings goes wrong he will be next to you not your frnds with whom you will hang out at nights.