If a machine can replace a human GREAT!!!
Are you seriously telling me you want to defend a check out chick's job?? I have never spoken to a check out chick who wanted to be a check out chick for life or as a career option.
Those jobs are going and the people doing those jobs will be glad to go and get better and more interesting jobs.
Farriers, coopers, mailmen, check out chics ancient history.
