You said yourself first that there are a lot of hurdles and obstacles in the way of adoption and then you say that cryptocurrencies should be immediately legalized, then what are you referring to as obstacles? Isn't it the governments and authorities who are continuously trying to pull down cryptocurrencies and platforms related to them and push them away from the people by either putting a lot of restrictions or simply banning them?
The actual obstacle in the way of Bitcoin and cryptocurrencies adoption is the governments that are against it and the authorities that are doing their best to not let Bitcoin or cryptocurrencies prosper so that people can easily use them maybe not in place of fiat but side by side.
Which is why we cannot really depend on them and their generosity, bitcoin needs to become widely adopted despite the governments and not because of them, it is not going to be easy because as bitcoin gets more popular and the economy keeps performing badly then we are going to see the governments becoming more belligerent against bitcoin and the community in general, but if people have to choose between following the government and their dumb policies or adopting bitcoin, they will adopt bitcoin if it benefits them.