@henman
Nah it's a thing.
I honestly had that kind of mindset in middle school, where every time I walk back home from club activities, I'd drop by a Chinese takeout place to grab lunch/dinner.
(School lunch isn't that good and I'm a latch key kid)
I've been doing it so often over the past couple of years that the owner recognized my order and asked "the same as always, right?"
And me with my overthinking brain went:
"Oh shit, I've been coming here so often that they know me, this is really embarrassing"
And then I stopped turning up to that place for a while.
Of course a lot of people would find it endearing that they were recognized as a regular, but at the time I was really self conscious which is what the manga was trying to get at.