"I'd imagine the under-20 crowd is more accepting because they still know how being a child really is...."

True.

The first person I ever came out to told me that she would've liked to have an older friend or family member like me in her life when she was a child. (She was 16 at the time of the conversation).

"...At least for ones not on a public sex offender registry, I suspect so."

I will say that I am extremely thankful to have had the opportunity to come out of the toybox, so-to-speak, on my own terms.