Every musician should do at least 1 month as a piano bar player or as a husker in a subway, it would go a long way of removing that Sense of being a Genius and help them to understand that Music is as much a craft as it is an art.
I find it odd how few people know that Hitler was in the Art Scene before he was in the Evil Monster Scene.
All architects should spend a summer as a brick layer or an electrician or roofer or some such so they cam gain an appreciation for the army of sweat working craftsman who will bring their genius creative master pieces to life. Concrete, they should spend a month pouring concrete.
Most Chefs appreciate this principle most of them have worked as Dishwashers. Most will still pull such a shift if the need arises.
All dad’s should pull at least 1 2 week solo shift in the first 3 years of their kids lives, and another during the ages 9-12.
Every VC should spend a summer trying to raise Money from people who have never heard of them.
Every programmer or web designer should spend a few weeks work as a car salesman, or benefits manager or better yet in a technical support call centre.
Know the shoes your colleagues work in. Appreciate their craft, and be grateful.