Swearing is like organized/established religion. I'll have to abstain from it until I've judged my kids are mature enough to have a say in the matter, i.e., whether they get to swear (although you never know who will expose it to your kids first). The difference between swearing and religion is that I won't be explaining swear words to my kids before they're "of age", whereas I would be more than happy to indulge their religious interests as best I can. Lord knows I'm not the most well-versed in religious studies, but I would be more than happy to brush up for the sake of appeasing my kids' intellectual appetite.