Being a furry never felt like a conversion or choice to me, it's just something I've always been. It probably showed its first signs around when I was like ~8, being interested in reading about dragons and werewolves. Eventually figured out I was more interested in werewolves than other people were, and being terminally online I stumbled upon the VCL imageboard and a lot of stuff clicked into place. Figuring out I was gay was also hand in hand with learning about furries, so props to the furry community for helping with that.
I know a lot of people consciously choose to be a furry at some point but I wonder how many people are just locked into it from the start, like how I feel.