It would be insane to take them out completely they are an introvert's dream and most people prefer them for smaller shopping trips. Now if every store went to the scan and go model then I would be okay with them being gone. Scan items as you shop and then pay from your phone. The only interaction is an employee at the door just quick checking your receipt by scanning a few of the items. It's glorious.
I just spent the last 2 hours before bed playing Minecraft with my 7 and 5 year old and I ate chicken nuggets for dinner... I may never grow up....