It's very easy to train for eg steel mill work in eg community colleges. Specialized jobs can easily have their training outsourced. When a job pays >minimum wage OTJ training can be paid fr by an apprentice paycut. When a job pays close to minimum wage, this is impossible, so the OTJ training is outsourced and the employee must pay out of pocket. This amounts to a paycut--an innovation of the market in response to the artificial market distorting minimum wage.
