The mega travel center in the South Eastern US, called Buc-ee’s, does have these indicators. However the last time my family was there, my wife encountered a Karen who was concerned she couldn’t tell which stalls were open and my wife pointed out the red occupied/green unoccupied indicator on the locks and she was like, “No, I don’t know, I’ll wait for someone to leave.”
Why don't public restroom stalls have OPEN/OCCUPIED indicators like porta potties do?
I hate peaking under the stalls or knocking doors to figure it out. The answer is so simple.