Back in the day, when I was a young fellow, trying to learn the Cowboy trade in the Big Bend of Texas, rolling your own cigarettes was a part of the trade. To do it right, you had to use one hand and never, never use glue paper. You could tell a Rexall Wranger (drug store cowboy) cause they smoked "ready rolls" (store bought cigarettes).
All sorts of popular speech migrates from it's origins to some other usage. Objecting to it, is like pizzing in the wind.