Originally Posted by walkinthewalk
That's about the age of the vet since it takes at least six years to get thru vet school and then do an internship. He needs a refresher course regarding who's old and who isn't
She is far from senior but sometimes younger horses do need senior feed if they have some sort of issues.
As a graduate of vet school myself, I have to point out that we generally do four years of undergrad, then four years of vet school, just like human docs. :) Not six, at least not at any of the US vet schools. There are a few rock stars that get their undergrad done in under four years though. Internships are optional.
I agree with the second comment completely though- sr feeds are a safe way to get easy to digest forage into horses of any age, so they have plenty of non-senior uses. That said, I consider a 12 year old to be a full adult in their prime, no where near a senior citizen of the equine world!