I hear so often mothers "afraid" to tell their children to not listen to certain music, read a book, watch a movie,... that are of questionable benefit for the heart of your children, because they are afraid they will get frustrated and reject the Lord because everything is a "NO".
My comment to that is: If your children walk away from the teaching of the Lord, they are responsible before the Lord. But you are to be faithful in teaching them to walk in His way, to not bend their morality and to stand firm in what is good.
If your parenting is a bunch of rules to follow, then yes, you should be worried. But that is why we need to talk to them, talk to them about what the Bible teaches, why is it wrong, the dangers of it, the beauty of not doing that what is wrong, and help them to have a deeper desire and passion for the Lord.
I am no charismatic, I do not agree with the doctrine of it. But I tell my kids, I am a strong Calvinist with a sprinkle of charismatic in my love for the Lord. I want them to see that passion, desire it. I tell them: all doctrine and no emotions, you run the risk of being to proud; and all emotions and no doctrine, makes you ignorant and unstable. So be all doctrine with a touch of charismatic :) (now, this may be controversial for some of my friends on both sides of the fence, but if you know me, you understand what I mean).
If you teach your kids to dress in a certain way, explain why. Explain it to them so that it becomes part of who they are. If it is having certain friends, also talk to them, warn them if necessary and encourage them if appropriate. Be quick to listen to them and ready to explain.
Be afraid of the Lord, not of them. The Lord will convince them. He can be much more persuasive that the world. Once He gets a hold of their heart, He will not let them go.