I spend around 5 years without knowing I was a zoosexual/zoophile, I though I was the only person attracted to dogs.
I find out I was a zoosexual/zoophile when a friend of my sister leave a University work open on the diner table, the work was about paraphilias, it happened to be open in the page that was about zoophilia, out of random luck, that is how I learned what I was.
After that, when we finally got a computer with internet, I did more research on the Internet (altavista the word zoophilia) and found forums and sex guide, so I learned about zoonosis (diseases) what to do to, what not to do, etc. Kinda the same you have to learn about humans sex I had to learn all that by teaching myself or by asking to other zoophiles with more experience.
Now I'm a teacher too, I have help to educate many zoosexuals.
I would have loved to get zoosexual education when I was 10, but I only got heterosexual education from teaches (nothing about bisexuality or homosexuality) what ever I did with dogs was by pure instincts and logic, luckily I'm very good at reading dog language so I never harmed them. Also, luckily I never got mounted by a male dog. That could have gone very wrong, that is one danger people like me should be thought. (lol) Doing that without knowing what it is going to happen can result in a painful accident. I know zoosexuals that let their male dogs do them when they where 12ish and things where wrong for them because they didn't have a proper education, dog penis not like human penis in shape.
Anyways, I think eventually in the future, people in sexual education class will learn about all sexual orientation and about paraphilias.
PS: Teens already do experimentation with or without information, with infromation they can experiment in a safer way. If they have a a paraphilia like pedophilia, they could get proper counsel so they learn to handle it from a young age and they don't end up like a child molester. Same for zoophiles, if they get proper education, they will not end up like zoosadists or bestialists.