I wouldn’t mind if either the cost savings by the grocery store would be transparently passed on to the customer and not greedily put in own pockets OR the checkout process is like " walk through a gate, everything is self scanned due to RFID tags and you can pay immediately at a machine"
Power plants, power grid, water grid, post, 5G networks, parking lots payment, visa cards should be state based, public health insurance, health system incl dentists, pension system, education, Kindergarden should all be completely public with no intention of profit. All parallel private companies need to be forbidden in this space