Please correct the following text: One way or another they are going to...

Please correct the following text:

What is there so much immoral in nudity and sex that children are not let to watch them? One way or another they are going to experience them once they become adults. How can sex and nudity affect children? If a certain movie contains violence, nudity, or vulgar language then it is given the rating of PG-13 or R etc. As far as violence and vulgar language are concerned I can understand why children shouldn't be exposed to such an atmosphere. If children watch violence, perhaps, they can like it or they can become scared. Both of these things can have bad psychological effects. If they like it then they would like to be violent in their real lives it will affect them in dangerous ways and perhaps they will end up becoming bandits or smugglers. Above all they will be dangerous for their society. There are a lot of other reasons. The form of language used by a certain group reflects its class. If you swear like a sailor then it will be assumed that you have no education, you belong to a bad group, you were grown up in bad atmosphere, and your parents didn't care to teach you anything. Children shouldn't be exposed to vulgar language because they can start using it in their personal lives which will reflect poor class which their parents will never like.

But how would you justify that sex and nudity can have bad effects on children? There will come a age when they will start experiencing these things in their heads anyway. But when they haven't reach that age and they have no feeling in their minds then this doesn't matter if they watch someone nude.

I'm also of the opinion of not letting children to experience such things but I want to know the reasons for this. Is this a taboo in our societies? Please support your arguments with sound reasoning and logic. Thank you.