Sure there is swearing in real life but often not as over-the-top as it's done on TV.
What was that western themed series some years back that had "f*ck" like every third or fourth word? I got bored real fast.
You have obviously never met a co-worker of mine named Rob. This disturbed fellow feels compelled to drop an "F bomb" at least every other sentence. It would be one thing if I worked on a shipyard loading dock for some other equivalent "blue collar" job. But we are both system engineers in a 7 story tall office building with a dress code mandating button down shirts and ties.
One time I got so frustrated with him that I asked, "So, how's your Tourette syndrome today?"
An exceptionally vile individual.