A harsh reality that pre-vets should be aware of is although vet school is as expensive and time-consuming as medical school, the economic return is one of the lowest in the healthcare industry. The average starting salary for Princeton grads is roughly about the average starting salary of vet school grads(~60-80k). 99% of the time, students who apply to vet school genuinely care about animals, are not in it for the money, and are willing to be broke for the job even after years of extra training. Financial struggles reportedly contribute to veterinarians having disproportionately high suicide rates in the healthcare field.
Vet school graduates may choose to pursue a specialty, which can give a salary boost, but specialization requires years of residency and internships with low pay all while paying off your loans. Location and type of practice can also impact salaries.
There is essentially very limited grant aid for vet schools (unlike some medical schools that are now beginning to cover full tuition for financial aid students) and it is probably because vet school graduates are too broke to afford large gifts to their vet school alma maters. There are some scholarships that students could apply to, but financial aid tends to be mostly in the form of loans and you are expected to work jobs during the summers and/or the academic year. However, attending your state vet school could help you get a somewhat reduced tuition charge for being an in-state resident.