You can always tell the old-school Mac users from the newbies based on whether or not they quit applications entirely when done with an app or merely close the active window.
@snazzyq My ex-girlfriend’s MacBook was awful to look at, since there were always 12 things running in the dock when she’d only be using Chrome.
@thewarragulman @snazzyq My wife does the same. It drives me bonkers.