Earlier quoted context omitted.
I, too, am still rocking the 13 mini, which they made good enough that nothing they've made since has made me wish to upgrade, though the fact that every phone since is Too Damn Big has made me happy I haven't yet. We've got about three years left before these things are unsupported. Three years of hope for them to release _something_ a little smaller than "uncomfortably large."
Also on 13 mini. But my next phone needs a better camera, and the cellular radio reception needs to be better (my 13 mini loses network connection in weak areas faster than my wifes 15 or sons 16 pro does - they stay online, I’m out). I love smaller phones though (hence the 13 mini).
However if Apple released a new iPhone mini model every fourth year, I'd wager these would be like a McRib-style smash hit sales event, compressing the comparatively small mini-enthusiast audience into a time-limited buying window. It would also trigger FOMO at a time when many people are increasingly willing to delay upgrades for 5+ years.