Now this is something I am very curious to hear everyone's input on.
Mugen is over 20 years old now. Which means it is probably older than many of the people who use it.
Now if you asked me 10 years ago I have a feeling on what the answer could be, but if you ask me now I have no idea...
especially after being out of the scene for so long.
So what are the age groups of most the mugen community?

That is actually a very good question.
I don't know the right answer myself, I am of the older age group I would say - I wasn't around during the DOSMugen era but I knew about it when I first started using mugen, which was probably some time around 2005 maybe.
At that time I was in the middle of college, and i am in my 30s now.

I think that there are still quite alot of the people in my age group still active in mugen because the type of content that we like is based on the pop culture of video games that we were most interested in at the time we were young.
Games like Street fighter III guilty gear and melty blood AC and of course Capcom vs snk 2 which was a hugely important game to my generation in the early 2000s.

I think that the most popular ages would be between 18 and early 20s because many quit mugen or leave the community around the time their college final years gets busy.
I also think that there is another group of much older mugen users that are in their 30s because alot of those names that are still around in mugen were doing mugen almost 15 years ago from my memory

40 YEAR OLD VIRGINS

I joke I joke, I kid i kidd XD
Probably though

I would have thought it was more younger people?
But actually when i think about it, it may really be a mixture of all age groups because there
are even some really old people maybe 40 and older that still use mugen, because mortal kombat and street fighter
games are games my older uncles even used to play before I was even born o O
and most of us never played those older 2D versions

I would say 25 - 35 maybe.
The people doing mugen in early 2000s may have been teenager then so they will be late 20s or early 30s now.
Because those were the sweet spot for 2D fighting games.
If you were 10 years old in 2009 then you grew up to Street fighter Iv and missed SFIII.
I think if you did not grow up playing street fighter III Guilty Gear KOF 94-XI then you missed alot
of the golden era of fighting games so Mugen will not offer much for you.
But then again maybe Im wrong because of what you guys said about JUS mugen makes sense