- No work without pay (and the Supreme Court actually got one right this year, in their internship ruling);
- No employing children;
- Overtime work requires extra pay;


On #1, I agree, and as I've mentioned, different states have wage and payment collection laws that provide remedies + damages when employers violate

Definitely agree on #2.

#3 gets complicated - for hourly rate jobs, I definitely agree. On salary that gets complicated.