however I don't imagine that it is bitcoin that will bring down fiat off of its high position.
True, both system have their own pros and cons and one does not topple the other. Moreover, being comfortable and not paranoid about your money is important too, fiat has already made it's place in the people with that and it is not possible to move people from that group to crypto by own awareness spreading.
While bitcoin was made as an alternative to fiat, it is already serving its purpose. Beyond that, speculative markets have developed to allow risk takers to trade on its price changes and that is a different topic. We also have Forex, but does that change the objective of fiat? No.
I agree. It is not as easy as it sounds. It is true that cryptocurrencies are the future. But the world still needs to accept the potential of Bitcoin and other cryptocurrencies.
The world is a rock, the people of this world have already seen how crypto can be used but it is their choice and that is for them to decide which one to use. You cannot force someone to use something because you like it.