Because the phones are too freaking big.

Very few people bought the smaller phones available on the market.

Apple never sold a flagship ("Pro") iPhone mini. If you wanted the better cameras (particularly the telephoto camera), you had to get the 12 pro or 13 pro. By the 11, they had given the non-Pro models dual lenses, but with the gimmicky 0.5x instead of the more applicable 2x camera.

In the Android ecosystem, to get a good small screen these days you need to get expensive and fragile foldables. The mini phones like Jelly are too compromised on hardware and software.

Because it needs more pixels to hypnotize you better.