In the US I’ve usually seen grocery stores have a self checkout where there are a bunch of self checkout machines and 1 staff member at that area to hand out ba

In the US I’ve usually seen grocery stores have a self checkout where there are a bunch of self checkout machines and 1 staff member at that area to hand out bags, probably make sure you actually pay and don’t walk straight through the self check out, and fix things when people need to return items, the machine breaks, etc.