This is a hard subject for me because I'm just as guilty of these as anyone else. The Bible tells us in Romans 12:2 "And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God"
And we need to teach this to our children too. If we parents are trying to act like the world, dress like the world, be involved in the world's entertainment, then we have no right to be upset when our children are not behaving in a godly way.
You just can't "Christianize" rock music, Halloween, witchcraft, etc. We must as Christians make every effort to "be ye separate"( 2 Corinthians 6:17) and not be as the world is. Now I'm not talking about physical separation but refusing to behave in ways that separate from God. Things like drinking, fornication, club hopping etc.
I must confess that I once in awhile I'll be listening to secular songs on the radio about the very things that we are to avoid. The television is a big problem for me. If I don't allow certain activities in my home that go against God's Word, then I shouldn't watch programs about it and neither should my children.
This post was more of a ramble and I apologize. I have so many thoughts on my mind and I want so much for my life to be pleasing to the Lord. Lately I feel that I have fallen short.