With the game constantly paying homage to the actually-good FFs of the late 80s and early 90s, you've got a lot of folks pushing 40.
And a few more in their late 20s / early 30s, who played FF11 in its prime back before WoW was really even a thing.

That's a good point Jennah! A lot of the people in my FC have been playing the FF series for a long time. Some have even played every one of them.