We often call bitcoin digital gold, which means people also treat bitcoin like gold. And do you see gold being used for payments globally?
Personally, I'm the opposite of you, I don't think bitcoin can become a global means of payment in the future. Looking at what's going on, I see people talking about bitcoin as an investment, a commodity that can bring them profits. Not to mention, do you think governments will accept a currency that they will not be able to control and cannot tax? I like reality and don't want to live in illusion and this is my view of what bitcoin has been and will become. Bitcoin is an asset to invest in and in the future it will also be an investment, an asset.
Why you need to use other people opinions to define something? what most people say about Bitcoin is scam or ponzi, will you think Bitcoin is like that?
Government already accept Bitcoin as legal tender, check El Salvador, that means they don't have to control Bitcoin in order to accept Bitcoin.
How you can think they can't tax Bitcoin? it doesn't have to be as a commodity i.e. capital gains in order to tax Bitcoin, everything you earn get taxed i.e. income tax.
Besides El Salvador, are there any other countries that accept bitcoin as legal tender? And do you know what % of the population there uses bitcoin as currency? Because according to what I see in the media, the president of El Salvador is still diligently buying 1BTC every day and what he is talking about is profit. I never saw him mention the use of bitcoin in his country, I only saw him talk about his bitcoin investment being profitable.
Governments will certainly find ways to tax, but with the use of bitcoin they will have difficulty collecting taxes. We don't need to ask someone, ask yourself, do you want to pay taxes to the government if they want to collect taxes on your bitcoin investment? And how many people will voluntarily pay taxes or are trying to avoid taxes through bitcoin?