anyone surfing here because their student is having regrets that they aren't following music

You are full-pay and he’s not sure about his major. Sounds like a recipe for a (costly) 5-yr plan. My solution to lots of problems on CC is – Gap Year! He gets a minimum wage job and starts learning about business. Meanwhile, he auditions for community theater and above, as well as taking private lessons. Sees for himself whether he can compete.