I like to be around people who don't constantly emphasize their every word, making it hard to tell when something is actually important. Since swearing is a verbal marker of importance, its casual overuse is like shouting all the time; it's very wearying. And, lest I be accused of rationalising, I do not only apply this to children, but have also asked my wife to cut back on swearing.

Thank you for this. I've been wondering reflectively why I've been swearing more frequently lately, and I just realized that it's to make sure my voice is heard. I'll try to attack the root of this and instead get my attention-validation from having good things to say rather than saying them most crassly.