My wife went through semi-expetimental therapy (at that time) for her MS. It was tough but ultimately a net benefit.
It all depends on what is at stake - I would consider Ozempic for some weight loss but prefer, for now, go for no sugar and moderate portions. This is not life changing for me so I indeed prefer people who will benefit way more from it to go first.
Brain surgery isn't exactly an industry where "move fast and break things" is an acceptable approach - especially when you are the patient. Considering Neuralink's historical record, going first sounds like a horrible idea to me.
Nobody is forcing anybody to have the chip - my question was about the reasons behind not taking it for someone who is blind, as a matter of curiosity. It is obvious that everyone will react differently.
As I mentioned, my wife went for that and it was quite a ride initially. You do not want to be on the witnessing side of such treatments but I respect her choice despite the risks.