it might interest you to know that bitcoin has actually fulfilled all of its purpose plus a lot of others too that the creator never anticipated.
And also, yes, bitcoin is totally free from government control, like the saying goes "people fear what they can't conquer, hate what they can't control", this is clearly the case with China's ban on cryptocurrencies, Chinese government hate the fact they can't control bitcoin and cryptocurrencies so they clearly see it as a threat to their financial system, hence, they ban it out of fear.
It is clear to me that people will always downplay bitcoin. I mean even in a situation where bitcoin "failed" to do what it suppose to do, it is 40k+ right now and made many people millionaires. It is so fair that, there are more than 21 millionaires in the world, meaning not every single millionaire will have 1 bitcoin, some of them will have to have less. So that should tell you the future of bitcoin as well.
I do not think that it has failed, but even in that thought we are still doing awesome in profit and adoption. So all these people who keep trying to find some mishap or mistake or failure in bitcoin will never end, they will keep on trying but they will never succeed at all.
There's always those negative critics on bitcoin even how profitable bitcoin is today. And for that, there's nothing we can do but to ignore them. However, if we deal on the real purpose of bitcoin, i guess making it as an alternative payment will only happen if the government will accept it as a currency. Just like El Salvador who was brave enough to accept bitcoin as a legal tender, and they're making benefits from it now. And bitcoin that should stay free from the government, i think with its present status, most of the countries have no control over bitcoin today and this maybe the reason why they don't want to accept it as a legal currency because they can't take full control on it.