I was talking with some students today and they all knew what bitcoin was (they are all middle schoolers).
I was curious so I asked all of my classes and I would say about 70% of them knew about it with even one kid who said he had bought some (well, with his dad, so "bought")
I would say that at least in terms of recognition, it is already mainstream.
In terms of adoption though, it still has a long ways to go.
On top of that, the sudden influx of new money can potentially be bad for btc.
As the next price crash will cause new people to panic sell and end up hurting btcs reputation.
When btc gets adopted by major global businesses like amazon, then we will finally see mainstream adoption.
But then get ready for the regulation hammer and taxes, taxes and more taxes on your investments.
I agree. BTC has come a long way, but imo the next wave of crypto is security tokens. Been doing research about securities and the company polymath happened to be in the article. That industry in itself is a $100 trillion industry