Why Is Dr Bernstein Bald?

Why is Dr. Bernstein bald? He is practically a Norwood Class 6/7. Does he suffer from DUPA or is he just adamant about not getting transplanted?

Some say bald is beautiful! Dr. Bernstein is comfortable with his looks and understands the burden of balding. When he was younger, had the transplant solution been as good as it is today, he might have gone for it. Hair transplantation is a personal decision and not for everyone.