As a follow-up to this post, I tried peeling a banana the opposite way that I normally do. That is, peeling from the non-stem end. Memer said in a comment, "how could that possibly be easier? it's not simple societal convention that we use the stem end -- it's easier to get a good rip on the thing, innit?" That is pretty much what I thought before I tried it.
To peel from the non-stem end, you have to squeeze the tip of the banana until it splits, then peel. So it feels more like two steps compared to grabbing the stem and peeling all in one motion. However, it does seem to peel more "cleanly" this way. Then when you eat the banana, the stem makes a good handle to hold it with, which makes it feel kind of like eating a popsicle.
Is it easier? I don't know -- "easier" is probably the wrong choice of words, because both ways are very easy.
Is it better? Maybe. Holding the stem end while you eat the banana does seem a little bit better. But it is not a huge difference.
What interests me the most is that many of us have never even tried it, just like the coffee thing. We are creatures of habit.