High school removes bathroom stall doors to prevent vaping

This high school in northern Alabama has removed the stall doors off of all the bathrooms to prevent students from vaping. Now correct me if I'm wrong, but do we NEED to remove doors to determine if people are vaping in the bathroom? Wouldn't the cloud of telltale vapor be enough? I can see a lawsuit in this school's future for disrupting students' privacy. See more here

Source/Photo: waff.com