I keep seeing people comment that Lemmy is mostly men in their 20s and 30s. That's not my demo and many of the posts/comments i see don't seem to fit that.
Don't forget that 98% of 14 year olds will not pipe up and go "Yeeeaahh! I'm just 14 in here!" This data has always been impossible to gather, as you simply cannot gather it objectively, it's currently impossible at the technical level.
Throughout my teen years, whenever I had to submit real info for something, my name was Bob Barker and I just made up everything else on the spot. The computer had no way to verify if I am being honest, and I knew that.
And on that note, I am a snotty-nosed 14 year old.
Guys, remember to only reveal information about yourself that you want to remain forever on the internet, and linked to your username. Also remember that someone who wants to find you in IRL will be using multiple vectors so even if you think it's only one datapoint, people can look at datapoints from multiple sources and paint a pretty accurate picture of who you are.
Age is not hardwired to things like posting behavior, personal views and affinity to technology. There are people younger than me who use their phone like my mom and write comments my grandpa would think are backwards thinking.
Older than that by about 20 years here, but I'm on kbin.social, where it tends to be pretty diverse - there's a pretty even balance of posting by gender, where it can be determined. It definitely feels more friendly towards minorities here than some of the lemmy instances. I think it really depends on what instance you're on.
I'm a dude beyond my 30's at this point. What would you guess is the demographics? I'd say that a typical being a 20s/30s M is about right, although it seems there's a higher portion of women and trans people here (or at least describing themselves as such).