This means that its against the law for someone to have sex with someone under the age of 16. It wouldnt be illegal for someone whos 16 to have a relationship with someone who is 30 – unless that person is their teacher or in a position of authority.

Can a 32 year old date a 15 year old?

Yes; 15 is under legal marrying age in many states, and under legal age of consent. The great difference is chronological age is also indicative of a great disparity in mental and emotional maturity, much too much to be dating; its very inappropriate for a 30 year old to be dating a 15 year old.