And the more control you have over the work the more screen time you get. My family has a lot of contractors, and my dad left that to work trades for the government. Before my dad died he spent most of his day on his computer, even though it was his least favorite part, but he was the head of his department. My contractor uncles all spend hours a day on screens, calls, orders, book keeping, meetings, drafting, reading specifications, reading contracts, etc., now that they are the head of businesses that have younger people doing most of the physical work.