They did not in fact recommend any such thing. They recommended banning students trying to hide their crotch shape with bandages and tape. Yes this is would be hard to enforce, but this is not a healthy thing to do to your junk and so if schools can figure out a minimally intrusive policy to discourage it maybe that's a good idea.
Would it not require a genital inspection to determine whether a student was attempting to do this or not?
The practice is harmful but the invasiveness is not worth the sacrifice nor the time. Schools should teach about consent and safe sex practices, that's it. Social reactionaries on both sides are becoming creepily obsessed with kids' genitals. Some on the right now want inspections for "purity" while many on the left condone unethical surgery and experimental treatments.
Just leave kids alone, both sides. Good God.
