I do mystery shopping audits of retail stores. I have been doing it for quite a few years and have noticed the standards for shop workers has really slipped.
A lot of basic politeness is missing. If I ask where something is, often they say over there which is not very specific rather than taking me to the item. Other staff will not move so I can access an item if they are doing an online shopping order. People restocking often refused to move or sigh when asked politely.
Knowledge of accessibility is poor. Staff often look miserable and look like they don't really care. Others will be chatting away and ignoring customers.
There are great retail staff too who go out of their way to help and always have a kind word to say. In one store, the shop worker would not just assist people struggling with self scan but she would scan their entire shop for them.