I won’t work for my father

I don’t understand why my father is trying to convince me to study chiropractic marketing. I understand he has his clinic and he would like to work with his family instead of paying strangers to work for him but he should know that I would never work for him. It is obvious that my father and I don’t have a good relationship. If we had, I would have studied chiropractic marketing without him telling me to do that, but I won’t.