Whilst true, and perhaps forgiveable, with regard to checkout persons I did hate it when the same general disdain for customers permeated the whole service sector. This is changing thankfully and going to a restaurant in the UK is now no longer (or at least, not always) a chore. Speaking as a native Brit.
I don't understand the point of what you said here.
Q: When you arrive in a restaurant and your server pitches up and says "Hi, how are you?" in a super-bright, ultra-cheerful way, do you immediately think:
a) wow, they genuinely enjoy serving people or b) they've been told/taught to greet customers that way, _every single time_
?
If I have to think about the staff's conduct, good or bad, usually that means something is wrong.
It was obviously part of the job and nothing personal, although we were nice and not assholes in any way. Some people find it super cool, I just found it the most fake bullshit ever, and really hope they weren't actually forcing their staff to drink with customers but rather encouraging or just allowing it.
I think saying "Don't enjoy it? Don't do it!" is misunderstanding the gulf between those two counts. The entire service industry would likely grind to a halt if people actually took that advice.