Just to throw some basic free market economics at the problem. Generally speaking you cannot correct the mistakes of a market with regulation, which end of being some form of more or less complex wage and price controls, or outright rationing.
If a market is not functions efficiently history shows that the cause is almost always due to previous regulation, or there is incomplete information needed to make a purchasing decision. Two wrongs don’t make a right you can’t fix these problems with more regulation.
Ronald Reagan said government is not the solution.
So you're in favor of allowing child labor?