Personally, I don't like a shop assistant following my every move in the shop(I know they're trying to help, but I like my space), at the same time I want an assistant who would help out IF I asked. All the shop assistants over here have helped me out when I asked, and have smiled and made sure I was satisfied with the service. So no complaints from me.

But I'm sure their working conditions are awful and probably didn't get the right training.