I became a furry largely because of my inherent fascination with the concept of sentient animals in both the realms of both science and fantasy.
That is in turn mixed with the psycho-emotionally gratifying prospect of receiving much-needed kindness, compassion, wholesomeness, lovejoy, and equanimity from the Furry-Fandom during my earlier and starkly much more darker days ridden with copious amounts of depression and anxiety.
Also, Furries are just very wholesome people in general and it'd honestly be a real shame to miss out on that - same thing with being able to be myself for once unapologetically and wholesomely without fearing wrathful retribution from anyone for it.
There's obviously many more reasons to the decision of me becoming a furry that I have but can't mention due to there being so many, but these are the Top 3 that I had.
May I ask what made you a furry by any chance?