It may also require bath and beard if video conferencing but we do so because it is actually a convention. Live vs online is similar to financial modeling courses. There is nothing compared to the human connection made between an attractive teacher and an amorphous student. Giving skills, learned texts, and making mistakes and correcting.
Better for healthy conversation courses and perfect experience quality among the instructor and its class. As the old college says, “Do not take the class, the professor takes”. We all know who the best professor in school was and we did the worst to enter our class.