So? What's the problem? Thank god my parents weren't as sanctimonious and narrow-minded as you. I still would have dated who I dated, just in secret.
I was 2months from 18 and he was almost 32. No one forced me, coerced me, used me, hurt me or raped me. These were happy times. My parents didn't bat an eyelid, they met him and liked him. And no, I wouldn't have a problem with my 17 year old having a 29 year old boyfriend, none at all.
It fizzled out eventually, but no regrets and no drama. We're still friends now, just now I'm 32, and he's 46.
I always went for older men and my current boyfriend is also older. Personal preference. Don't see the problem.
However, I don't see 17 year old as 'children', whatever the law says. It's ridiculous.
And you should keep your beak out, it's absolutely not your business.