What about shows that have no swearing but have content that is much worse than swearing, such as public drunkenness, betrayal, mean-spiritedness, and gory violence?
Also, if you've never said a swear word out loud in your life, you may find yourself swearing if you decide to have kids or become a CEO like Elon Musk or Steve Jobs.
Finally, if someone uses swear words, it doesn't mean they're stupid or lazy. 9 times out of 10, it means they're angry, and that anger may be 100% justified.