There’s something about playing that lights up their motivation centre. So it’s not so much a routine as it is an impulse that gives them a dopamine boost - like an addiction. It’s not that any of us couldn’t do it with enough focus, but it would be constant intentional action to keep working at it. And a lot of us just don’t have the long term focus for that because goals far in the future are hard to keep focused on, unless you get into hyper focus, where you just become obsessed with achieving something. The trouble is that most of us never achieve that satisfaction that something is “complete”. So when things seem never ending, sometimes we just… give up and move on to something else that seems more interesting now.