Wow, you are delusional if you think this won't affect your children. Let's look at what is happening:

1. You, the parent, take them to a place where they see naked adults. This alone constitutes child sexual abuse. But, let's go further:
2. You, the parent, willingly take your innocent children to a place of lawlessness, so they can witness lawlessness. Being naked in public is normally a crime.
3. You, the parent, by taking them to this event, condone ALL the behaviors and ALL the "pagan" demonstrations. Paganism is worship of Satan, btw.
4. You, the parent, are teaching them that worshipping Satan, via paganism, is an acceptable orientation.
5. You, the parent, have forfeited your authority to teach your child what is right and proper for THEM as they grow and mature. Wrong is now right, and right is wrong.. Whatevs!
6. You, the parent, have just participated in corrupting your own child's moral sense.
7. When your child ceases to respect you or any boundaries you might set, it is YOUR FAULT. Don't yell at them: YOU ARE REAPING WHAT YOU HAVE SOWN.