When I was 16, being bisexual was our version of being trans, EVERYONE wanted to be bi. Needless to say, while being gay wasn't as accepted in the mainstream as it is now (this was before gay marriage was legalized in the U.S.), it was honestly so normal for people my age that no one bat an eye if you were dating someone of the same sex. I wouldn't call it a "golden period", but teens were coming out of the closet without fear (at my school at least) and no one had to deal with trying to navigate 10 million different "genders", so yeah, it was pretty nice.

Anyway, I'm honestly not sure if you'd even have to wait until you hit 25 for your friends to start coming around. It seems so many younger people are doing things to their bodies that they don't fully understand the consequences of; I'd imagine that as little as a few years from now, there's going to be a wave of people bemoaning their self-mutilation and blaming anyone and everyone but themselves. You're probably going to see multiple medical malpractice suits, and with the bottom line being money, there's going to be a big backlash everywhere from doctors to government to big pharma. People that were afraid to speak up will have more room to be critical, and then hopefully we can go back to the drawing board and figure something out that works for people genuinely suffering from body dysmorphia and women/LGB without being shouted over by a bunch of men gunning for our heads.