Movie NC17

So the beginning of the movie was extremely disturbing to be. It showed, and over exceeded the amount of sexual contact, or interaction with male and female. To me that is not normal, I don't see that often at all, and if I would have known if that is what I would be seeing, I would have stepped outside the room. I do understand that they showed these things because they were trying to prove a point. A point on saying how a movie is ratted. Movies that a ratted NC17 means that no one under the age of 17 can see the movie. The people that are suppose to be ratting these movies are suppose to be normal, US families. In reality some of these people that are trying to tell us these movies are to adult for the children's eye are people that are not really normal US families. On the other hand they are rich and successful people and might not even have kids and if they do they over the age of 21. To me its extremely difficult to understand why they would do this, because a normal US family is not rich and have kids over the age of 21. They "family" that I talk about keep there identify secret, why you ask? I don't know they feel like they need to keep their identity secret because of there safety. I truly think that the people that should be ratting these movies should be random people and random families.