Actually, the whole issue of May working in a convenience store is quite interesting.
We've been told at various times that Pintsize' chassis is worth at least $3k, and that Momo is walking around in a $30k chassus. That all implies that May's bargain-basement chassis must be worth at least $10k. You might not think that it was viable to spend $10k on a counter assistant; but if May worked the hours, and replaced two part-to-full time Humsn staff for two or three years, that could be a good investment.
Meanwhile those two displaced human staff are looking for employment. They can't stand in the corner powered-down when unoccupied. THEY take the view that it is wrong, morally wrong that a thing of metal and plastic has taken their income. They complain to their political representative, congressman, MP, whoever it may be. An intern (who clearly doesn't need the money, or they couldn't afford to have an unpaid job) dismisses them as "robot racists" and they make no useful progress.
SOMEONE is right and wrong in all that; May continues as before; one of the former employees gets another job, the other doesn't. May actually has more job security than a human, because of the need to recover the investment.