Legal tender because if only legal currency, it already happened on many countries. Don't you worry because we know that BTC being accepted as legal tender is not easy, so we are not assuming that many countries will follow it too but it is great that after El Salvador there are one, two, and 3 countries now (I think) that also made BTC as a legal tender.

We already know that reality you said because BTC is a currency that are opposed to the currency government and bank has but again, it was great to see that a lot of government/countries still allows BTC now even though there are only regulations in place but it isn't totally a bad thing.

It also has a benefit like it provides extra security for us against the fraudsters in the BTC space. Governments can't control BTC so they just choose to ban it instead and continue to manipulate people with the help of their own currency (fiat).

So why say that they are not doing this for the prosperity of the people? BTC is already there and so as the regulations, so we still can't get away with our taxes, if that is our goal of using it. I don't think it's a bad thing though, as long as I'm earning well and then I know that taxes are going to where they should wanna be. BTC isn't the only thing that can make us rich, so no governments can stop us if we are truly willing.