It's not necessarily fair to read those charts that way.

The radio time could be while commuting to/from work. Quite a few folks have TV on in the kitchen while they prepare dinner. Social media time is frequently a minute or two at a time scattered throughout the day. etc. etc. etc.

The chart even indicates "Some amount of simultaneous usage may occur across devices".

Right, there are exceptions, but let's be real. "I don't have time" usually means "It's not a priority over TV/games/social media".

The median adult has much less free time than the mean. A parent with a full-time job has even less.