Why is a fun activity toxic? Do you just avoid TV/movies too since they don't result in a valuable set of useful skills? You don't have to be productive 24/7,

Why is a fun activity toxic? Do you just avoid TV/movies too since they don't result in a valuable set of useful skills? You don't have to be productive 24/7, you don't need a value justification for everything you do, and you don't need every expense (whether money or time) to result in a net positive cashflow or whatever.