Here are stats from 6 months ago, I doubt it’s changed significantly since then:
https://www.pewresearch.org/short-reads/2023/08/28/most-amer...
That seems pretty massive honestly, that's way beyond what I would consider adopted by the masses.
Or another way of thinking of it: among people that have heard of your free-to-use product, a majority haven’t bothered to try it.