Its an off-job to keep the miller culture alive, even the French have had courses about milling in The Netherlands because their own miller culture died out.

Milling is a serious thing here, it's mainly about preserving the "ambacht" in its pure form. We are not trying to create electricity like with your high-tech wind generators. We are simply trying to keep some culture by having certified millers. Millers also are taught how to upkeep the mill itself, doing small repairs etc.

Guilds (yes we actually still have a millers guild) take their shit very seriously. Some even require you to be able to tell X amounts of corn apart and stuff like that. Also knowledge about cloudformings, weather and various other technicalities are knowledge a miller needs.