I was in JROTC in high school and before some ceremony the colonel explicitly warned us about this exact thing. I don't remember anyone passing out.

The royal family aren't too powerful de facto. At least Elizabeth II was quite down to earth and an excellent lady. Charles III isn't too bad either

The Queen was known to discreetly enquire as to the condition of soldiers who passed out on parade though.

Yes the correct course of action when someone farts is to freak out and try to help them

I don't know the details of the military demonstrations, but singing in a choir as a kid in front of hundreds of parents is exactly the kind of scary thing with no actual danger that can really help kids grow and conquer fears.

By that logic we should close all roads because we EXPECT automobile crashes to happen, we should cease all construction and industry because we EXPECT accidents to happen, we should ban all sports because we EXPECT injuries to happen, etc.

I'm chiming in as someone who actually fainted during a choir practice. Our teacher cautioned us at least five different times not to lock our legs for that exact reason, but in the moment I wasn't thinking, and I locked my legs. It happened only one time, and I was the only kid who fainted in the entire four years I sang in that choir. But oh, how inhumane of our school for hosting a choir recital (gasp!). It sure was evil of them to put us in a situation with a normal level of risk while trained first aid personnel were present.

I think maybe you're just severely overestimating how much it happens. The other person used the word "commonly," but you used the word "constantly," and that is not the same thing at all. We have to prepare for the most common mishaps because there are inherent risks in everything we do. But I assure you, if people were constantly passing out in parades and choir recitals, we would stop having them.

They're not expected to. But it happens. If you have concerts, people usually pass out. That's why you have trained medical staff on standby, no matter the event. It's just that the military has an organised way of doing it... Because it's the military.

If they’re going to die from standing in the British sun for half an hour, the Army recruitment medical examiners really fucked up.