What do people do for a living in Scotland?

Any as Normal in a developed part of the world, for instance; Sitting behind a till in a supermarket, or a Mechanic in a garage, or a Office person. Or if you mean further back in time, it would likely be Fishing, and Farming, Hunting and what we today would call Crafts 'like Weaving and Spinning' Not to Mention Fighting as Soldiers.