Training of new surgeons is essential, maybe we should accept that the new guy gets to have go. Future generations will need top surgeons, so they need to practice on someone. Maybe us baby boomers having spent the next generations money, taken first dibs on the houses, and upset Greta Thunberg; should at least ensure they have a chance of decent health care.
I spent a bit of time teaching people how to fly gliders, you do have to let the student try and land, and obviously there first few attempts are heading for disaster so as an instructor you take over before it gets dangerous but not much before, as the student needs as much experience as possible.
It would seem some surgeons do more than 700 operations a year. Now assuming they take weekends off and have eight weeks holiday (when you are on that sort of money you need time to spend it) and play golf with the drugs company rep every Wednesday. They must be doing four operations a day. I guess with robotic surgery they don't need to scrub up before each operation, and perhaps due to modern internet technology, he may be able to do a few ops from the clubhouse bar after the golf. However I would assume that the top surgeon supervises four underlings per day, he is putting his name to the job so he will make sure his underlings are top notch, and will have all four screens up in front of him (plus one other to watch tiktok...can you believe it a cat playing piano 😸).
When you buy a painting by Leonardo Da Vinci, you are actually buying one from his workshop, most of it probably done by an apprentice, but with a few strokes by the master ("hey Giuseppe, next time you do a passport portrait of that Mona Lisa women tell her to say Cheese. Never mind, give the brush here I'll try and paint a smile on her).
So perhaps when they are selling prostatectomies they should be described as "in the style of Mr X", "attributed to Mr Y".