I agree that in many cases "choice" is a red herring. (For instance, primary schools - I say primary in particular because there might be a tenuous case for forms of specialisation for older children, who are very sporty or very musical for instance - I don't want to choose, I want the one at the end of my road to be perfectly good).
In medicine, and obstetrics in particular, it's tricky because the patient has to be emotionally and psychologically in tune with what is going on for it to be properly successful, but the patient also needs and wants to rely on the expertise of the professionals.
I hated the weeks before my dd2 was born because I got stuck in a sort of decision-making-aporia because I couldn't quite take on board that it was my job to decide (no one was making any decisions at my hospital) and that whatever I decided would be contrary to the view of some professional. I didn't unpack my feelings properly to understand that what was so hard about my making the necessary choices was that I felt it would be overweeningly arrogant to take a view contrary to trained practitioners (any trained practitioners) and that if something went wrong this would increase my burden of guilt. As no one was making decisions for me, or really acknowledging that they need to be made, or explicitly asking me to make them, (it was all a mess - Croydon university hospital - supposedly under the consultant - saw him for 90 secs in about 10 appointments - no one else made any sense) I got stuck. (ended up in MLU btw and had brilliant care)
Mental health is another one. Do you want SSRIs? Do you want counselling? I don't know, you are the doctor. When I first went to NY in the late nineties I couldn't understahd why there were consumer ads for prescription drugs all over the place when you can't buy them over the counter. Now I see why, you can just go to your dr and say you feel like the new drug for such-and-such a thing. It's a capitalism-driven model of what medicine is or should be.
I think doctors are not all trustworthy, but I wish they were all good enough that you could just trust them. I would love it to be the case that you could just say, "if that is what you think best, I'm sure it is". GPs are never like that. They just want to write a prescription and get you out the door.