CB could actually be a lot of fun, and it wasn't all truckers, not by a longshot.
When I was 13 my father gave me his CB radio because he couldn't figure out where the heck to mount it in his new car. So, I got a power adapter for it and stuck the antenna out my window, and poof, I was on the air. I discovered a whole local community of radio people I had never imagined, and made many friends... including the husband of a teacher from school, a couple in their 80's, a few kids from the community college, an old high school friend of my father who turned out to be a distant cousin by marriage, and even a kid from my school that I didn't actually know. On the Internet nobody knows you're a dog, and on CB nobody knows you're 13 until they meet you. I met everyone, and my social life became rich and interesting. I'm still friends with some of these people. Others have, sadly, passed away, but my life is better for having known them.
But then, the sunspot cycle changed and the radio waves became overcrowded with noise. Also, powerful (and illegal) transmission power amplifiers became widespread and the idiots using them ruined the airwaves for hundreds of miles around them. The noise level from it all was so high, in order to not have constant noise coming out of the radio on every channel, I had to turn the squelch up so high that it would never receive *anything*.
I found out the hard way that the FCC was totally uninterested in enforcing the law and keeping the frequencies useable... they basically told me "too bad kid, it's CB, we don't have time to do anything about that, what did you expect?"
And *that's* when serious community interest in CB died off, as the people who really cared about it all finally gave up, went and got our amateur radio licenses, and moved off of CB to the 2 meter ham radio band.