I remember reading about the idea of putting polarizer on the windshield and on the headlights at 45 deg angle so that the lights from oncomming car get blocked

I remember reading about the idea of putting polarizer on the windshield and on the headlights at 45 deg angle so that the lights from oncomming car get blocked while yours are still visible to you. That was more than 30 years ago. It would have to be mandatory though. I wonder why it didn't pan out. I know polarizers block some light either way, but with modern, strong headlights maybe it's time to revisit the idea?