When you take the advice of Warren Buffet, it is something excellent, but if we go to the stock market you must wait at least 8 or 10 years to see results of the investment, on the other hand, in BTC you see results after 3 or 4 years, and the most likely is to see a great profit, that is what many do not see.
To be fair I think Bitcoin expected timelength to make the same profits as stocks is also getting longer and longer. 2014 to 2017 20x was three years and now 2017 to 2021 a longer period of 4 years, it is "only" 3x.
I guess we know why Buffett is starting to like Bitcoin (by not saying so much against it anymore).
He sees stability? oh common, Buffet and he's co-billionaires are always after the money. I like that idea he's no longer vocal with his stand and there are many institutional investors now inside this market.
Getting the attentions means investment in the long will bring decent benefits, everything still depends on how you interpret this business
and how willing you are to go deeper to learn more.