yeah I don't know a single person that hasn't used it. maybe my grandfather
My sister uses it every day and my friends but they tell me it’s mostly because I told them about it and walked them through it.
Remember that we all live in our echo chamber. Obviously all my tech friends has used it. But other social bubbles may have missed the entire LLM topic completely.
My kids used it for homework and my dad for writing research papers. But my sisters haven’t. I’ll say it’s partly echo chamber, partly individual curiosity