I would like to know why the folks that open carry do so ? It attracts un necessary attention. Police officers & others carry concealed for a reason.
I was LEO for thirty two years and the last twenty of those years was Detective lieutenant. While working in plain clothes our policy was to wear concealed. Sometimes while working a crime scene we would remove our jacket with our shields clipped on our shirt pocket. But mostly we kept them concealed. Just more professional to do rather than walking around open carrying.