I know a few kids who want to be vets so they can be around animals; mostly pets, not farm animals. I tell them all to learn to groom dogs with the plan to start their own shop. They can save eight years of tuition and start earning money immediately. No student loans.
In my semi rural area you can’t get an appointment for weeks, and Saturdays are 2 -3 months out. At $40-50 apiece, with not much overhead, and less than a vet’s office, those folks are making a dang good living. Adding a kennel and fancy treats are other revenue streams.
I am actually a Director for a Humane Society. Veterinary medicine is in high demand right now.
I also agree with you that grooming is a great business as long as you understand what the client wants and can deliver. People are funnier about their dogs haircut than they are their own.