It's crucial because you can use words to make relationships or break them. Depending on what you say could have a good affect or bad one on one's relationship.
It's crucial to think of what you're going to say before you say it. The reason is that sometimes people just talk and don't think about what they are saying they can accidentally say something they didn't mean to say and affect the person to who they are speaking. For example, people who dislike someone else can talk to them and say bad things to them which can affect how the other person feels and affect how the other person acts around other people.
Because you don't know anything about them and you wouldn't know if they're going through something. We should all keep it to ourselves so we don't cause problems. Even if you say sorry they could forgive you or not but they wouldn't forget about what you said. They would take what you would say seriously and you don't know what they would do next.
it's important cause you never know what someone is going through. For example, if you are talking rudely about someone who might be going through a rough time at home. You are just bringing them down even more.
You have no idea how hurtful and mean you can be to somebody! You don't even know them, and yet here you are talking them down for no reason. Think before you speak and ask yourself if you would like to hear the same thing being said to you.
Some words can hurt people deeply, and It's important not to forget that when choosing your words. Words can come off as offensive and bitter, and usually, those words are used in the absence of a better vocabulary. ¯\_(ツ)_/¯
It's crucial to treat people with the same level of respect as you would like to be treated with. One's word can either negatively or positively impact someone's relationships and life.