I'm a little bit puzzled by your statement, "These were the only jobs the teenagers were qualified to do." Surely there's other work, possibly more of it these

I'm a little bit puzzled by your statement, "These were the only jobs the teenagers were qualified to do." Surely there's other work, possibly more of it these days, for teenagers to do. For instance, with an increase in the percentage of dual-income households (as opposed to the single-income households which dominated in the past), there are more families in need of babysitters or tutors. When I was a teen, there was a high demand for tutoring services, dog-walking, and minor web development work to be performed by teens. And wouldn't the teenagers for whom this bagging gig isn't a permanent sort of job be better suited in a position that offered more educational opportunity (e.g., tutoring younger students, or learning some web dev and making a website for a local SMB). One could argue that the employees with disabilities are freeing up the teenagers to do work that gives them more educational benefit, like the power looms freed up textile manufacturing workers to find more economically valuable work in the long run.