Music these kids listen to

My nephew has just hit the teen years of his life and has changed from the cute little boy that loved Ninja Turtles and Power Rangers, into a total rebel against anyone and everyone. A big part of this change in him, I believe has to do with the music he had been introduced to by his older brother, which is mainly Rap. I don’t understand why parents let their kids listen to music that promotes sex, drugs and disrespect to most women and then expect them to stick with innocence. We should all try to make a difference in this matter, or else our newest generation will live life with the wrong outlook on what life is really about and live in a fantasy or dream world for most of their lives.