Most people don’t need more than basic arithmetic to get through the day. Or their lives.
But they do need to be exposed to simple algebra and geometry. For many it will be the only exposure to abstraction and structured rational reasoning they will get. That’s why efforts to remove it as a high school graduation requirement are misguided. They may never practice it but at least it was laid out in from of them how to do so. (Mastery is not the goal!) For some it will make an impression on them. The others will continue to go through life emoting to a conclusion.