ADN/RN route to BSN vs traditional BSN

This is exactly what I was thinking there is just this tiny niggling doubt that says if he ends up not wanting to do nursing then his ADN will have so few transferable credits (outside of nursing). It has hardly any core general classes. It is an Associates of Applied Science, Nursing. I am going to talk with his guidance counselor to ask if he starts the ADN and decides nursing is not for him, can he switch to the more general Associate of Science degree for the remainder of the program so he would have more transferrable core classes for a BS in another major at a university. Just want to have an exit strategy if he changes his mind. He is making this decision at a younger age than most.