Yes, much more staff is hired for online shopping

However funny enough some store increased the hours they had for the front end, I worked for a Walmart that did a conversation and they added like 400 hours to the schedule for monitoring and running the registers. Biggest thing is now they can have 20 registers open and pay for 4 cashiers, before they would have just only had the 3 cashiers and 3 registers. So I would not say the self checkout took jobs, it changed how the job is done