Definitely not! But I think historically if an adult was spending THAT much time around children it would have been as like an authority figure or mentor of some kind - just a different kind of engagement . Adults wouldn't be participating in teenage-coded inside jokes (memes) and they certainly wouldn't be doing their viral dances (there were no adults doing cha cha slide and Soulja boy with us when I was a kid...) . Any conversations about sex and love would be led by the older generations and not the younger . The reverse is true on conventional social media right now
Discussion
I think that in the past "teens" didn't have a separate culture. Communities were tight (compared to the bare resemblances of community we have now), and younger humans were more focused on becoming a part of the community's culture.
I think what you may be describing is how interacting on the Internet has allowed some immature adults to use the lack of connection in communication (eye contact, body language, voice inflections, etc) to behave like children. I think this is a product of recent culture, which, I hope, changes direction.
That's probably a part of it too! Although I do think it effects the collective and our culture as a whole, not just some immature people. Either way, I hope it changes too but I don't see that happening until more people start developing critical thinking skills or start awakening 😅 it is not clear to me how that will happen..