This may actually be false! Owning a smartphone is so normal, even required, nowadays that people who don't even own one are often "edge cases". For example peo

This may actually be false! Owning a smartphone is so normal, even required, nowadays that people who don't even own one are often "edge cases". For example people who believe in fringe conspiracy theories, people with severe health problems, elderly people, etc. Even if resigning from phone helps by itself, "average people" rarely do. Similar statistical effect happens with alcohol usage: from raw data it often looks like people who drink almost nothing - let's say one drink a month - are healthier than people who drink absolutely nothing.