I would get in trouble whenever I used profanity, my parents stopped punishing me once I was about 14 or 15 years old. There were still certain words my mother didn't like me using, and I would get in trouble if I did use them. I heard some neighbor kids the other day using the F word, and they've got to be in elementary school. I think kids shouldn't use these words, teenagers on the other hand well they're older and will eventually probably start using these words... So I don't really have any issues with 15 year olds cussing.