“Because you won’t find them wearing them in the winter, even when the glare is worse from the sun because of snow & ice, than the summer.”
I wear sunglasses year round whenever there is sun in the sky, or snow on the ground. And when there is sun AND snow that is when you need them most of all! Basically, when I’m outside, I’m much more likely to be wearing sunglasses. I value my eyesight. So should every other Jew.