MFA: Master of Fine Arts and PhD: Doctor of Philosophy

That's like asking why does a president have to know history. If you speak, write and read properly then you know language arts, and surely you should be able to speak, write and read if you want to be a doctor.

Given clearance by your doctor, there should be no problem. Contact fighting may be off the list, but you can still participate in martial arts.

Not unless:

A doctor as prescribed them

You are a martial arts teacher and need them to stay current and up to date.

You are a martial arts teacher and need to pay dues to stay a member of the organization.

He has a Bachelor of Arts (B.A.) degree and a Juris Doctor (J.D.) degree.