> For all the downsides of a touchscreen phone, people are able to use them one handed for hours on end. You actually picked an example that doesn't support yo

> For all the downsides of a touchscreen phone, people are able to use them one handed for hours on end. You actually picked an example that doesn't support your argument very well: back in the day, people were able to manipulate dumbphones one-handed very dexterously and even without looking (famously, teens could text their friends while their phones were hidden in their pockets) whereas the modern smartphone demands the use of eyes and often both hands. One-handed use with most modern phones is much more difficult and error prone than with the dumbphones of yore.