Lmao you say that like it's our choice. Even if everyone who owned Bitcoin wanted to replace fiat, it's not going to happen. They're going to exist for as long as governments exist, and there are no indicators that the entire world will fall into anarchy anytime soon.
All people can really do is choose not to use fiat, and the hope is that Bitcoin would actually make that choice feasible.
People would certainly choose cryptocurrency over fiat in the future, however we are still currently living in the present day where fiat serves a good role on transaction and in the market that would really help Bitcoin and cryptocurrency to experience changes and development.
What about the people that do not want all their transactions displayed on a blockchain? They have to jump through hoops to make anon transactions?