[noduerme]

All of your examples limit or prescribe hours of work. This implies that the remaining time is free. There is a fundamental difference between telling a minor what they have to do some hours of the day - e.g. go to school - and telling them how they must apportion the entire rest of their time when they've finished their work. "Free time" loses meaning if it's all surveilled and controlled. Truckers don't have to be watched when they're not driving. Adults, too, have all their time free when not working, to waste or use productively as they please. To say you're limited to the remaining 19 hours of the day just means you have 19 hours of free time. It's no longer free time if the government begins to restrict it for reasons that are outside its remit.

[saithound]

> All of your examples limit or prescribe hours of work.

Well, I guess you should give those examples another read. Unless you consider using a tanning bed to be work. Not to mention "buying alcohol at night".