We all need to unwind, and with the recent explosion of coloring books for adults and the recognition of coloring's health benefits, more people with driver's licenses are picking up the hobby. The results for Google's predictive search is telling, even if they include almost our entire life span. (Poor newborns can't get their internet use together enough for even a mention).
Actress Zendaya is a dedicated colorist. She tweeted a shot of a well-stocked cubby that she calls a coloring station: