Never strikes me as necessary, it’s so rare that it snows deep enough to cause an issue that people are just careful for that short time. The Elderly couple near us seem to have no issues getting about in the snow and ice, and I don’t either.
The pavements far more often become lethally slippy with ice (rain, then freezing is FAR more common) but we don’t expect everyone to go outside and thaw the street outside their home.
The bigger question is why are people so pathetic that half the country comes to a grinding halt in an inch of snow? Madness and general hysteria perpetuated by the media making everyone think it’s worse than it is. Get on with it, get over it and stop whining. If you know someone with particular issues (no legged, underweight 90 year olds) then keep an eye on them and ask if you can help out. Somewhat simpler than mobilising the entire country to clean up a few inches of snow on a pavement that few use.