people get pressured by their peers to do things or simply agree with them, because their parents didn't teach them what they should believe is "good" or "bad and "right" or "wrong" because as the saying goes "if you don't believe in SOMETHING, you'll fall for ANYTHING"
and I agree, people get worse and worse as the years go by...but it's supposed to be like this, says all this stuff is going to happen in the Bible (let's not debate about religion though)