I'm not even going to start arguing with rates of regret of drastic life changing and often disabling procedures like knee surgeries, spinal surgeries, or gastric bands compared to the extremely low rates seen in transition related surgeries.
this argument becomes redundant once you realise that this, what, 1% regret rate? consists to the largest part out of botched surgeries as well as the effects of the system designed to "protect trans people from themselves"
it's a self reinforcing system. more gatekeeping => more pressure => more bad choices => more regret stories => more gatekeeping