I agree with LKPike, my mom has done research, and has found that its both genetics and the way they are brought up, for example is a kid has the "good" gene so to speak then they could have awful parenting and still be a great kid, and if a kid has the "bad" gene then they could have the worlds best parents and still be terrable kids. take my brother and I, we both had the same parenting, and if anything, the parenting I was given was worse because I am the youngest. however my brother is bad he droped out in grade 10, does drugs, partys all night, skiped all his classes in school you get the picture, where as I am the "good" kid, never skips a class, never parties, does not drink, does not even consider drugs or smoking etc.. same parenting but worlds apart. as my mom puts it I have the "good gene" I could have had terrable parents and turned out the same. while there are things I do blame on parents I only blame the parents if I have SEEN how the parents disipline. I blame my friends little sisters behaviour on her parents. why? because that girl is 9 years old comes home a half hour after her bed time and 1 1/2 hours after her curfew, she does not tell her parents where she was, they never knew to begin with, she walks in the house and her parents say "make your lunch and go to bed" no grounding no talking too no nothing. her older sister walks in the house 5 minuts late and she is yelled at and grounded for 2 weeks(no exaduration)