Thin privilege is getting carded at 37 years old. I'm traveling for business, in Southern California. I went out for dinner last night for Mexican, as I come from a land of ice and snow where Mexican food is rare, and good Mexican almost unheard of. Of course, I was probably the fittest person in the restaurant. I ordered a margarita, because booze. The waitress asked to see my ID. I was a bit taken aback, as I'm balding but with a buzz cut, and a big beard.  I guess thin privilege is looking 15 years younger than you are.