I always feel weird when this question comes up, because I wasn't one of those kids who always wanted to be a vet. It wasn't really ever on my radar growing up. Sure we had pets, and I loved them to bits, but I never had much contact with our vet because my mom handled most of that stuff (we were also lucky in that all our pets never needed much in the way of vet care beyond the basics until I was university). I wanted to be an actor, a singer, a writer, a paleontolgist... Sometimes all of the above at the same time. But medicine was never a thing,
I hated science through most of high school, which I now attribute to a very bad science teacher who taught us mitosis and meiosis for what seemed like the 8th time, and talked about fruit flies a lot. I went off to university enrolled in journalism. After first year, I realized I was never going to get a job with that.
I left school (woo boy, Mom wasn't too pleased with that but she trusted me) and took a year off. I spent most of that year working in my riding stable, working with Coquette and rehabbing another mare named Topaz. I applied to Olds College to do Equine Science to be a riding coach. And promptly got rejected because even though I "rode beautifully" apparently I "lacked work experience".
Mom gets sick that year, and on the way to the hospital, I see a sign for a one year vet assistant program. Hey, I'll do that! In the course of that year, I realized I actually LOVED science and medicine, but wasn't too keen on the assistant part. My vet asked me point blank, "I don't get it. Why do you want to be an assistant? Why don't you just go be a vet?" Thought about it, realized I didn't have an answer, and enrolled back in university, did my pre-reqs, fast forward and here I am. Totally fell into all of this and couldn't be happier!
(I did consider human medicine once I realized how much I loved medicine, but the application process for AVC and med school were pretty different, I didn't have time to do enough to be a competitive applicant for both.)