This sign surprised me. Ever since B.F. Skinner, we have been instructed to press buttons to get a desired outcome. All of a sudden, we shouldn’t press a button? I’m thinking this is a COVID thing… First, many of the population do not wear gloves, so button surfaces could be COVID-carrying menaces. Second, if not pushing ‘walk’ buttons was permanent, the buttons would be removed. ? No button, nothing to not push….