At the same time, bitcoin or other decentralized cryptocurrency cannot dominate the national currency of states. The state will not allow this.
I don't understand why some people are aiming for crypto to dominate the market, which is very hard to attain as most governments will prefer to stick with their fiat. Why not just be grateful that btc and other alts can co-exist in most governments? So it is up to the people where they want to go. But most of our financial transactions still need the traditional banking system, whether you are into crypto or not. So right now, it can co-exist with the current financial system but it will not be the main system by most governments.