I think it should have been written differently to begin with. I'm not a lawyer but they could probably target specific people to benefit from minimum wage (i.e

I think it should have been written differently to begin with. I'm not a lawyer but they could probably target specific people to benefit from minimum wage (i.e. by age group), and/or have the minimum be a function of a number of factors. So minimum wage for a teenager with no kids is different than an adult with a family.