Literally every working person I will ever meet possesses skills and knowledge which would take me some notable amount of time to fully grasp, if I even ever could. Yes, even garbage collectors. Maids. Clerks. Delivery drivers. Agricultural workers. Even the migrant ones.

The fact that it took years (decades?) to realize this is a tribute to the social stigma about “unskilled labor” and similar class-divide-enforcing concepts.

If you want to look down on someone, look down on the idle rich who have money to (figuratively, and possibly literally) burn and all they do to get it is… have money to burn.