This is entirely dependent on where you live, and where iPhone sales are concentrated. Look at the charts in [1] below. iPhone sales in China + Japan + the world > US + Europe. Women in Asia more frequently wear skirts to work, and tend to carry purses/shoulderbags more than, say, a casually-dressed American woman might. So it's not silly for >50% of iPhone sales (and also >50% of our species, see [2] below) to be heavily impacted by the market in countries where women "dressing down" is less tolerated or prevalent.

Note: I'm a dude who also prefers smaller phones. I have a used iPhone 5S but my primary phones are a slightly larger Android phone and a very large rugged Chinese phone (giant battery, dual SIM, good RAM, this is my travel phone).

[1]https://www.businessinsider.com/apple-iphone-sales-region-ch... [2]https://brilliantmaps.com/population-circle/