Why is it illegal to be happy?

[Reforged]

Let me rephrase that to make it simple:

1. why do we call erotic entertainment "adult" when we have all watched it under the age of 18

2. why is the legal age for sex in Poland set at 15 in Poland while the legal age for "adult" entertainment is 18

3. Why do the Xtians like you want to "protect" people from masturbation and fantasy while they do not seem to protect them from anal rape by priests

Those are some sound points.

1. Because sex is a practice we associate with adulthood.

2. Fair question, definitely should be reconsidered.

3. Because sex is a threat to them. Sexual passions rival religious passions.
If you make someone feel guilty about sexual urges they can't control it gives you a degree of control over them. Through guilt you can humble them and make them seek your "salvation".
Their sexual angst, their guilt, their feeling that they must be redeemed for what is beyond their control.
All of these things help build the fanaticism religion so loves to cultivate in its followers.
In this way they turn a threat into a boon.

They do the same with the rebellious aggression associated with teenage years by directing it at outside sources such as rival religions or "heretics".
Instead of attempting to cull such tendencies they promote and redirect them.
Religious indoctrination really is fascinating isn't it?

Please stop talking about sex with 12 year olds though. It only serves to undermine your points and is slightly disturbing.