Age doesn't equal to maturity

Honestly, I've seen so many adults complain about having people 18 and younger on here. They complain about them having sex, which makes young girls (trans/fluid/cis) feel more ashamed and insecure for doing these things. Some of us have this app just to track period while others ask for questions about sex and other related activities. Bc of our education system they barely know ANYTHING about sex, so they come to the Internet and apps for help to educate them. They shouldn't be shamed upon for wanting to learn what school doesn't teach them. I didn't know periods lasted a week when I was younger, I had to learn that from the Internet. I also learned how vaginas work, and other sex related things from the Internet. 
So what if they have sex? It's consensual, and it's their choice. Girls don't always have someone to talk to in person about this topic so they talk to people like us, but if we keep shaming them like this they'll just learn to hate themselves and be ashamed of what they did. Just bc you're 20-30 with kids doesn't make you any more mature, I've seen 10-12 year olds who are more supportive and understanding than some of the women on this app who act like this. Sorry.
FYI this is not directed at anyone. But if the shoe fits... 
AND JUST SO THE ADULTS KNOW: yes, I'm in my 30's and think WE all need to grow up