How a wage floor could change whom employers hired
When labor is paid by the hour, a lower wage can make one worker cheaper than another even if the two do different jobs. In workplaces where children could be hired for less than adults, that price difference gave employers a financial reason to favor young workers for low-paid tasks. A legal wage floor could narrow or erase the gap: once both workers had to be paid at least the same minimum, the cost advantage of hiring a child shrank.
That was one economic argument for setting a minimum—not simply a way to raise pay, but a way to change employers’ choices. If an adult worker’s greater experience, strength, or reliability came at little additional wage cost, hiring an adult could become the more attractive option.
A wage rule could address more than pay
The argument did not mean that a minimum wage automatically ended child labor. Employers could still have other reasons to hire children, and a wage floor alone could not enforce age limits or keep children in school. Nor was this the only rationale for minimum-wage laws, which have also been defended as protection against poverty wages and unfair competition among employers.
The revealing point is that wages can shape who gets hired, not just how much a worker takes home. A rule intended to lift the bottom of the pay scale could also reduce the financial reward for choosing the cheapest—and youngest—worker.
