Remember Utah's new Senator, Mike Lee, and this?

Congress decided it wanted to prohibit [child labor], so it passed a law—no more child labor. The Supreme Court heard a challenge to that and the Supreme Court decided a case in 1918 called Hammer v. Dagenhardt. In that case, the Supreme Court acknowledged something very interesting — that, as reprehensible as child labor is, and as much as it ought to be abandoned — that’s something that has to be done by state legislators, not by Members of Congress. [...]

This may sound harsh, but it was designed to be that way. It was designed to be a little bit harsh. Not because we like harshness for the sake of harshness, but because we like a clean division of power, so that everybody understands whose job it is to regulate what.

Now, we got rid of child labor, notwithstanding this case. So the entire world did not implode as a result of that ruling.