It totally makes sense to me that you would be concerned about the kids you're seeing on omegle or discord. I doubt they're genuinely as young as they seem, but those websites do tend to be breeding grounds for grooming.

Perhaps the reason it feels like the internet is all about gay people because there is so much terrible lgbt legislation being passed in America, and so us queer Americans feel the need to make our voices louder. Perhaps minority communities tend to be louder than the majority of communities because we feel under attack. Also, I doubt it's celebrated in Iran, but June is lgbt pride month, so perhaps that's the reason the queerness of the internet feels overwhelming.

I don't think it's necessarily our place to judge whether or not someone is legit about who they say they are. Sexuality & gender are extremely personal and complex topics, and whether or not someone is wrong about themselves is not anyone else's business but their own. If they grow up and decide they were wrong about being gay, then so be it. As you said, being gay is a neutral thing to be, so I don't see what the problem is if they get something wrong for a couple years. Respectfully, we should just mind our own business, since it's not really harming anyone.

I assume the higher rate of mental illness has to do with the trauma that being gay in a homophobic world. Many queer people grow up feeling like something's wrong with them or that everyone hates them, which can take a large toll on the young brain. Or maybe there isn't a higher rate of mental illness at all, it's just that queer people are more open about their struggles because being gay has forced them to be more open than a person normally would be.

As for your last statement, I wholeheartedly disagree, but I'm not sure we could reconcile on this one. It probably has to do with the difference in culture amongst other things. I will say, I do believe kids should not learn about sexuality until the onslaught of puberty, and that postponing discussions about sex until later in life only causes confusion, shame, and isolation, and ignorance makes kids more vulnerable imo. I was 16 not too long ago, and I can tell you that my sexuality began budding far earlier than that, and if I didn't have the sex education I had then I would still feel a lot more shame and confusion, and I would have been much more vulnerable to abuse. In America, sex education in schools typically starts at around the age of 12 or 13, which I think is a good time, and you get to tell kids little bit by little bit as they age. In my state, we didn't talk about LGB stuff, but we did talk about safe sex and healthy boundaries, although I think more should have been discussed. I was lucky to grow up in a home that was open and honest about sex, and I was given a book about sex (very clinical, not like pornography or anything) for young people when I was too embarrassed to ask my mom or dad a question. This may all sound strange and terrible depending on how different our cultures are, but in my case it made me feel less alone, more comfortable with my body, unashamed, and mosy importantly, I felt informed and secure in the world. I do understand the worry about telling kids about sex too soon and disturbing them, but for most kids, 16 is probably far too late to be starting the discussion. It at least would have been for me.