Who a person hangs out with or associates with, may badly, or positively affect their attitude and personality. This may be because of the they think highly of the people they associate with, and they want to be "like them".
#2 Recreation/Entertainment
Entertainment can be one of the biggest problems of todays world. Books, tv shows and movies that support disobedience to parents, violence, and un-clean things are popular today. These are a big influence on children today, causing them to act completly reckless.