It is admirable from a frumkeit perspective, but we have to remember, people’s feelings are involved here.
Rav shimshon pincus,zt’l, was our teacher in seminary. Upon walking into the classroom, he would remove his eyeglasses, before teaching. It was so subtle. He was able to avoid actually seeing any of the women, while preserving our honor by making it appear like he simply didn’t need them to teach in class. It was only if someone made an effort to look did one notice that it appeared from his gaze that he could not see others. Truly admirable.