Maybe people in your part of the world are less educated when it comes to using public toilets
It occurred to me (and people I know) more than once that I did flush, multiple times, and that the damn toilet just refused to suck up everything I put in there. And for some reason this was always in public bathrooms, across Western Europe. Hypothesis is that due to being used a lot and possibly not cleaned in the correct way there's to much deposit of bicarbonates limiting water flow and the force/pressure of the water being flushed isn't high enough to flush everything in there. Not much an automatic toilet could do about that btw.
It occurred to me (and people I know) more than once that I did flush, multiple times, and that the damn toilet just refused to suck up everything I put in there. And for some reason this was always in public bathrooms, across Western Europe. Hypothesis is that due to being used a lot and possibly not cleaned in the correct way there's to much deposit of bicarbonates limiting water flow and the force/pressure of the water being flushed isn't high enough to flush everything in there. Not much an automatic toilet could do about that btw.