In money, time and energy. The second insurmountable problem is determining the benefit that can be expected from the treatment. This problem has two parts. The second part is darker. Even if they knew, they probably would not tell you.
Doctors have bills to pay, too.
But, you will object, medical services are different. It's a matter of life and death. Any general practitioner will testify that at least half of the people who come to see him do not suffer from true medical disorders. Dr. Steve Allen, Jr., son of the famous comedian, was recently quoted as saying the generally accepted figure is seventy per cent. These people are, rather, afflicted by disorders of the spirit, bred by the shame and disappointment that accompany every life.