Well, my Androids do not have ads because I can install Firefox with uBO and Blockada to block ads even inside apps. I don't know if uBO works in Safari and I don't know if iOS allows for something like Blockada. In doubt (and for other reasons,) I'm on Android. However I'm not the typical user. The typical buyers just want an iPhone or do not want one, like they want one brand of shoes or a brand of bags, no technical considerations. Fashion.