I'd say the vast majority of the public born since 1990 haven't a clue about CB or amateur radio. Not only might they lump the two together, they have never heard of either one or at least have no idea what they are (were), and couldn't care less. Previous generations who were of age during the CB craze of the 70s and early 80s most likely have at least a faint recollection but think that 'ham radio' and 'CB' are just two terms for the same thing, evoking the image of the pudgy guy wearing the baseball cap talking into a handy PTT coiled cord mic. Those of us dating back far enough to remember amateur radio before the general public's discovery of CB are pretty much of the Korea-Vietnam era, now at retirement age or older. The current generation who are aware of ham radio at all most likely relate it to the Emcomm crowd, while relating world-wide communications to the internet. Not an unreasonable conclusion for those who listen to some of the conversations on 160-80-40m. This includes AM. Who needs something as arcane as 'ham radio' when you have the internet?