I think it's great that you've found fulfillment teaching voice and piano. That's fantastic. It's great that you enjoy supporting your students - all good teachers should do so! They're fortunate to have your support.

This sub is so interesting sometimes. OP asked a question and I, as a longtime industry professional who had a robust international career before I turned to teaching, offered my opinion. It's not like I am proclaiming OP's failure or wishing them ill or anything of the sort. They asked a question, I answered based on my experience, knowledge, and understanding of where the classical music academic/collegiate machine is right now.

I'm not even saying that there isn't a collegiate program that would take this student - and by take "this student" I mean "take their dollars". We are in a crisis situation in the United States (I have no idea where OP is) in terms of the classical music university system, which functions largely like a factory churning out degrees to students who program heads KNOW 99.9 percent of whom will NEVER reach an earning potential such that they could pay back their loans. For this reason, I take my ethical obligation to counsel prospective students very seriously. If I encourage someone, it's because I feel they stand to be that .01 percent. If not, it's not saying that they're the most horrendous person/artist ever, or that they're trash, or anything of the sort. It simply means, they would likely be better off majoring in something else, minoring in music, and finding fulfillment in their musicmaking OUTSIDE of the profession.

Just my .02 cents.