6. It's underused because of the insurance companies.
They consider your premiums to be their profit margin. Psychotherapy takes a long time and the insurance companies are all about the quick, cheap, pill pushing band-aid. If they can put off the expensive treatment until someone loses their insurance from being fired, or from aging off their parent's plan, or from suicide.. THAT'S where the profit is.
My son needs psychiatric help. I need to win the lottery.