The ones who still own their data? If data is money, they can also afford to buy new phones. iXpand USB-Lightning drives are supported by some iOS apps which process large files, e.g. media playback and editing.

There's no need for everything to be lowest-common-denominator. Product management is not statistics, it is aspirational leadership for upward mobility in human values, including but not limited to function, form, and creative power. e.g. a tiny minority of humans create art for millions, yet both can use the same device + accessories, if devices are not neutered.