I think I’ve gotta ask, are you from the US? Because I’m Aussie, and fully agree with OP that our system is fucked up. But if you’re American, then you should be looking inwards before criticising other country’s systems. A 15yo here working fast food has a minimum wage of $12.36/hour. In contrast the US federal minimum wage is just $10.84/hour (USD$7.25) for any age.

As well, the US does have a similar-ish law. If you’re under the age of 20, you can be paid just $6.36/hour (USD$4.25) for your first 90 days of employment. That’s nearly just half as much as a 15yo here.