I've had several furry friends, and I've met several in the course of my work... Most you couldn't tell unless they were "openly" furry (wearing tails/ears every day in public). For most it seemed like an after work/weekend affair with a lot of time being spent online where they could act out their desires in safe spaces.
My friends were very accomodating, and I tried hanging out on their communities when I was in highschool/college from time to time but just couldn't get into it. And no, I'm not talking about the sexual angles, there are plenty of places online where we'd just hang out. Game lobbies, etc, nothing perverse (something a lot of people seem to forget, 95-99% of the time furries aren't acting like animals for sexual reasons)
Even the ones that do do it for sexual gratification... man I don't care. Consenting adults are free to express themselves anyway they want as long as they aren't hurting anyone. Admittedly the age play in OP is a worrying sign, but that wasn't at all common in any of the groups I participated with, and I can't imagine any of my friends putting up with anything like that.
So yeah, I am sure a lot of furries don't do it for sexual gratification/arousal. People join groups and subcultures for all sorts of reasons.
But it is also, undoubtedly a super horny kinky community lol
I mean, you could say the same thing for a lot of sub cultures. Punk, goth, anime, etc... especially anything that has a large teenaged sector of their community as these kind of sub-cultures are how they express themselves in generally repressed environments.