Do the images of the toilets appear a little tall to anyone? If average height of a Roman male was 5'5", then I expect most of them could not sit with their fee

Do the images of the toilets appear a little tall to anyone? If average height of a Roman male was 5'5", then I expect most of them could not sit with their feet flat on the floor, but could only reach it with their toes, or dangled their feet, or braced against the side.