23% of Americans have used ChatGPT [0], so you’ve got more than a 1 in 5 chance that Joe Public will say he’s used it. Those odds are pretty good for a product that was released less than two years ago. In fact I bet that level of population penetration is higher than even Facebook in its first few years.
> In fact I bet that level of population penetration is higher than even Facebook in its first few years.
If memory serves me correctly, Canadians were the most likely to take an interest in Facebook in the early days. As of 2008, less than two years after being opened to the general public, 32.9% of Canadians were Facebook users. (If my memory fails me, it is possible that some other country had an even higher uptake.)
Only 13.8% of those in the United States were Facebook users at the same time, so if you are referring to the USA specifically then your bet is a pretty safe one. But this also highlights that early interest in technology tends to be highly regional. Relatively high ChatGPT usage in the USA does not imply relatively high usage worldwide.
Which is important as Joe Public hales from the UK. You might have been thinking of John Q. Public, which is the member of the Public family who lives in the USA, when you went to US figures. But I can find no ChatGPT usage data for the UK. The chances of what Joe Public will say are unknown. The odds are probably not as good as what you suggest.
[0] https://www.pewresearch.org/short-reads/2024/03/26/americans...