People are "investing" in tether and dogecoin? This can't be serious.
The average investor (and that is the majority), does not know the difference between Bitcoin and any other altcoin, and as we can see from the research, they think that an investment in stablecoins is an investment at all. I would say that people are gambling with their money without even understanding the rules of the game, which will eventually lead to the fact that most of them will lose everything they have invested in - either altcoins will fail or the CEX where they store their coins will get hacked or perform an exit scam.
If there is any truth to Bitcoin being used by about 5% of the world's population, then we are far from any mass adaptation on any level. People will always look for an easy way to make $200 from $100, and cryptocurrencies are currently something that promises in this regard.