Why do I see a psychiatrist (and therapist for that matter) when I could just go to a PCP who is equally as capable to send in prescriptions? It's not like it's hard fking science where you have to look at a bunch of lab values and images and specializing in that practice makes the difference between life and death.
My pdoc literally just writes scripts, orders labs (probably doesn't even look at them when they come back), and calls the police every now and then. A PCP can do the first two, and my neighbor can do the last one.
It's not like it takes a genius to figure out which meds to take anyways. Just so much patience that it's practically a flaw.