Maybe there's a typo. This makes much more sense:

Kim Jong ~~Un introduced~~ Unintroduced this law in 2013 …

Joking aside, this is, again, all projection. When I was in school… if you turned up with a shaved head you'd be sent home until it grew back. If you turned up with too long hair, you'd be sent home to get it cut. If you turned up with hair gel/hairspray or any other product, you'd be sent to the gym showers to wash it out. If you turned up with beads, braids, dreads, cornrows, a few too many bobbles or plaits, you'd be sent home to 'fix it'.

I'm led to believe that schools are marginally less racist nowadays. I'm not convinced. Is France not, right now, going through another wave of Islamaphobia sending muslim girls home for wearing religious/cultural dress over their hair?

Now that I'm in work (and it's been the same in every job), there's a dress code, which includes hairstyles. It's often unofficial. That doesn't make a difference. If you turn up with anything you might call a 'hairstyle', you will be ostracised, bullied, and possibly lose your job. You won't be given any public facing tasks, for a start.

I've not even touched on the shit faced by LGBTQAI2+ workers, for whom a 'non-confirming' hairstyle will be used as evidence of something if it suits bigoted, transphobic, racist colleagues and employers.

I just find it so mind boggling that liberals can live in the same world as me, put a quacky label on something that runs through every society in one form or another, and pretend it doesn't exist under liberalism but does exist in a designated enemy country. And that it's the worst thing ever. As if people in particular places and times don't just wear similar hairstyles, because culture, fashion, religion, etc.