I obviously get the metric system, and most Americans are pretty familiar. But inches and feet are rooted in physicality. An inch is roughly a finger width, four inches make the (now rarely used measure) hand, and 3 hands is a foot. You can step off roughly accurate feet. I long stride is about 6 feet, or 2 yards. All of these measures divide neatly by 2, 3, and 4. It makes most fractional measures, especially things like 1/16th of an inch easy to work with. I wouldn't use it for science, but for building a table or measuring a rough distance imperial units are super intuitive.