How do people become experts on doing dangerous procedures on infants if they're not allowed to do dangerous procedures on infants until they're experts?

I agree with most of what the author wrote, even a decent amount in the paragraph in question, but not wanting residents to get hands on experience while under the direct supervision of experts just because it is you or a loved one on the receiving end is not a reasonable ask. You have to do things to become an expert on doing them, and that means someone has to be on the receiving end of someone with little or no experience doing them. They get experience doing similar procedures in lower risk settings, etc., but eventually when it comes time for someone to do their first lumbar puncture on an infant, it's better if they're doing it under the watchful eye of someone who has done many.

Hospitals are full of 'life and death' situation. If everyone were to behave like that, things would stop working or be severely slowed because you can't work correctly when you got that guy breathing on your neck constantly. You lose time answering to load of demands from people getting angrier and angrier because they feel that they don't get the care they need. That makes you angry. Other people are getting less attention, they get angrier.. Etc etc.

I believe you have the right to say it when things are not right, but there is a fine line between that and the behavior he described.

And he wrote that he went to an expensive hospital, this isn't some low tier hospital filled with under qualified, under staffed personals.