If a pet is not going to be treated by a licensed professional, then the owner of that pet should be informed of that fact.  It's fine that students get to work alongside licensed vets to treat animals, but it's not fine that students are allowed to treat pets on their own, and make decisions on their own about the treatment necessary for the pet's good health.  If a student is allowed to evaluate and treat a pet without the watchful guidance of a licensed veteranarian, then the pet's owner needs to be made very well aware of that fact, even to the extent of signing a consent form that has been fully explained to the pet owner (and not just handed to the pet owner to sign).