Actually, given the extremist ecological idealism of liberals I’m frightened of the possibilities. A progressive population extremist could “neuter” hundreds or thousands of boys without their knowledge. It might take a generation to even find out it was done.
At least once, possibly twice when I was in grade school the heath department showed up and gave us shots without my parent’s knowledge or consent. This was in the ‘60’s. I didn’t even think to tell them it had happened. The attitude was it was none of their business.
I don’t think this particular shot could be given without a boy’s knowledge. No sir.