I work for Sainsburys in the Surrey region and company policy is:
- No offensive tattoos / piercings / wacky hair colours, etc
- No mobile phones on shop floor
- No money, no nectar card, no discount card on shop floor
- Perfect uniform all the time
- Monthly reviews of checkout staff for recording of manners, taken care of the customer, etc
Maybe you just got unlucky at tesco.
Aaaand the moral is, shop at sainsbury's. Try something new today.