This is nothing new; it’s been going on ever since the Industrial Age began. A hundred years ago the village idiot could get a job as a carrot picker, and fifty years ago he could still get a job as a pancake stacker. Not anymore.
For a long time now stores have had self-checkout aisles, where you scan/bag your own items. Typically you have one employee overseeing four or more checkout stations - meaning that three cashiers have been put out of a job by that system. The scheme the OP is describing is just the next step after that, in a long progression that started before any of us was born. To suggest that we should patronize a particular business because they deliberately operate inefficiently so as to employ more people is…an unusual position to take. The economy of the future will be weird, and probably will involve paying unemployable people some sort of basic income so that they sit quietly on the sidelines.