> imagine a world without advertising
I can't because a world with magic and world peace is more realistic and believable.
It's impossible. How do you even define advertising? If you define it conservatively, then advertising will skirt through the loopholes. If you define it liberally, then you have an unfair, authoritarian system that will definitely be selectively enforced against political enemies.
And in all cases, you are self-imposing a restriction that will give other nations an economic advantage and jeopardizing long-term sovereignty.
For the same reason weights and measures legislation is of course impossible.
This is why every time you go to the shops you have to carry your own standard weights and balance scale! The idea that society could regulate the weight and volume of every product in every shop is simply preposterous!
So they know what students should be taught but I don't know that they necessarily know how any better than the administrators.
I've always found it weird that you need teaching certification to teach basic concepts to kindergartners but not to teach calculus to adults.