I'm sure, but you're indicating "most people" which means you're speaking for 3-4 billion people, or are least most of them. Doing so would require data, which would require randomly selecting from among all the people on the Earth who use phones and establishing data driven trends based on their usage over time with multiple device designs. A few people, even if it's 1000 people, that you see in the places you go, cannot ever accurately represent what most people actually do. Example, you think most people have phones with small bezels. This can easily be established as untrue because most phones in use have huge bezels, at least compared to the recent flagships you're referencing.
Also, saying "they never hold their phone by the bezels" indicates either that you're not paying attention or your seeing something that's statistically so improbable that we'd call it as close to impossible as makes all odds. Many, not sure if the percentage, long time iPhone users hold their phone by the bottom bezel. Watch people that use small iPhones for work.
Perhaps you meant to say something to the effect of, I think many people probably... Which is fine, but sometimes it is just overcomplicating what can easily be restated as, " I prefer x" instead of "most people prefer x".
Final point, if there's no reason at all to have bezels, why is "palm rejection" a thing that is necessary? Aren't all this people holding it wrong?