Wait a minute; how does that follow? I retrained and got my "next" degree from ages 51-57. If you want to go to school, want to retrain to do work with animals, I'd get a job in a pet store, save the money for 4-5 years (some to live on, not just enough for school) and/or take a few courses a year, as you go along and work your way up in the pet store/get a job in a vet's office, etc.

Nothing stays static and orderly as adults, when we get out on our own, we don't have people telling us to go to school now, then do such and such; we design our own lifestyle based on what we want to do, where we want to work, whether we want time or money or work or school or travel or combinations of many things.