If the retiree didn't get a low-paying job (Uber driver etc.), his neighbors would be forced to care for him through social welfare taxes. With a job, he supports himself. All the resources freed up can be put to more productive use.
If the retiree didn't get a low-paying job (Uber driver etc.), his neighbors would be forced to care for him through social welfare taxes. With a job, he supports himself. All the resources freed up can be put to more productive use.