Once you start censoring where do you stop? Just think - Mark Twain's collections have been burned for being indecent, so has Ray Bradbury, Stephen King, Faulkner, Salinger and more. Check out
http://www.banned-books.com if you don't believe me.
It's what you teach your kids not what the world teaches them. You are the most important influence in their lives. Although I'm not a parent, I work for a non-profit that focuses on abused and neglected children. What I've learned is that a Mentor (parent) can make a difference.
As for Howard, I'm a fan. But I also listen to Alternative music, watch horror movies and read horror, like Marilyn Monroe and enjoy a good dirty/blue joke. That's what I like, I don't insist anyone like what I like. Listen to what makes you happy.