Yep, the belief that governments would just give up control of money always seemed incredibly naive to me too.
Things like "Womens right to vote", "Civil rights" or even democracy was seen as completely backwards and naive at one point in history (and still is in some places), but today we kind of see it as something good to strive for, most of the times.
I'm not saying it's 100% the same for cryptocurrencies, but isn't there a chance it's something similar at least?