"previously unaware of"
I was aware of sex far prior to my being 13. Far prior.
Movie ratings are screwed up. They don't make any sense to me, at any rate.
There shouldn't be. People reach sexual maturity at about twelve, if I'm not mistaken. Not that twelve-year-olds should be having sex, but sex should not be a barred subject matter until that point, and certainly not after.
Parents who sue for things as petty and unreasonable as movie ratings have more problems than their child seeing a person's naked backside.
I thought you were implying that movies insinuating sex should keep an R rating.
Anyway, I agree.