As an older person, I find turning my head to see traffic more difficult and when I turn back, I'm going in the wrong direction. The small mirror gives me quickly the information I need in order to plan what I do next without requiring much of a turn of the head. Yes, like anything else, it takes a bit of getting used to. The mirror is unobtrusive and the glasses fit well, are comfortable, and shield the eyes from wind and sun. I'd buy these again!