American here. I can't stand that forced positivity and chanting nonsense. I can't remember the standup comedian who this came from, but they had a bit where they were pointing out that it's bad enough that they have to work these awful jobs to provide for themselves, but they're forced to pretend they're enjoying themselves to boot. I've had to put on that faked positivity in a service position where my tips absolutely depended on it, and the only way I could really stand it was basically dissociating mentally and emotionally during the shift. You're a completely different person when you're in that position.