What the BLEEP?!

One day, at the tender age of four years old, I called a kid an unkind word.  My older sister told my mom and I got to taste dish soap for the first (and last) time.  A couple of years ago, I was talking to my mom about this incident.  I didn't understand why I got my mouth washed out for calling someone a name.  My mom told me that I didn't just call someone a name.  I used the 'F' word. 
The word that I haven't used since that day 22 years ago is 'fraidy cat'.  (Notice that 'fraidy' starts with an 'F'.)  My older sister had told my mom that I had said the 'F' word. 
Needless to say, as a child, I was very careful about what I said.  If a fun-hearted name calling resulted in me drinking suds, what would something really vulgar result in?  Like poopy-face?  Or fartknocker?  Then I entered middle school.  It was like everyone was speaking a different language. 
My mom had taught my siblings and I to ask her or dad if we didn't know what a word meant.  So I knew better than to repeat any of the words I was hearing, especially after seeing the teachers' reactions to them.
Next came high school.  The language got even worse.  There was no way to get away from it.  Even after graduation.  I was surrounded by profanity at work and at college.  It just comes out so naturally from some people, without a thought.
So it came as no surprise to me when the 13-year old accused me of being a hypocrite.  In a previous post, I explained the 13-year old's "What the What" jar, in which he receives a token every time he curses.  (I'm proud to say that I haven't used it in a couple months.)  One day, after I put a token in the jar, the 13-year old confronts me.  He felt that it was unfair that he couldn't curse.
"You're an adult," he said.  "You curse all the time when you're not here."
Wow.  Just wow.
I guess I can see where he's coming from.  He probably hears profanity all the time in school, on the street, on TV, on the radio.  To him, it truly is an adult thing to do.  I tried to convince him that I did not use foul language.  He didn't believe me.  It honestly hurt my feelings, being accused of something I don't do.  But like I said, I can see where the 13-year old was coming from.
I believe that using profane language is plain dumb.  What does it accomplish?  Isn't there a better way to express yourself?  Shut the front door, there is a better way?  Well by golly, see if you can figure it out for yourself.