Never said it was ageism but I am sure it is at least close to it and a good reason to look it up.

I agree with the part here being a nice culture compared to other “social” medias. However repatriating general stupid behavior just on kids is definitely ageism - not sure if that was OPs intention.

Don’t quite agree with your comparison: What you mention is more of skill learning process. Social media is more of a proper behavior to have - I think here the age doesn’t matter nearly as much as your surrounding.