Are LGBTQ+ are not for kid?

I saw some previous posts on the "not allowing gay Netflix" and that makes me wonder "are LGBTQ is a sacred topic for a kid?".

To be honest, there's some channel "Queer kid" and the owner of that channel has some TEDtalk and almost all the commenter below, they don't seem to agree with her "sexuality isn't sex".
https://www.youtube.com/channel/UCecsVoeJcsXbAra7Sl4mOPw

But of course, other than her, there's a particularly interesting channel for kid regarding LGBTQ, Pop'n'Olly and people seems to like it.
https://www.youtube.com/user/ollysp

Oh yeah, here's my question for you:
1. Are LGBTQ are considered taboo topics for kids?

2. If you think it's a taboo topic for kids, which age do you think, they're suitable for LGBTQ content?

I know mangago is a weird place for me to ask, but as Mango's kingdom has a diverse and wide spectrum of people, I want to ask your opinion regarding this.

And if you wonder, "are you trolling?". No, I'm not trolling you, I'm just asking this out of curiosity.