system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:If salt is so bad for cars, why do we use it on the roads?

As the title states, why do we use it? is there no other option or what?
gpt
salt is good for not dying in car crashes and car crashes are worse for cars then salt.

Some places use other things, but salt is really cheap compared to most alternatives, although sand is pretty good.