Governments support trading, but it will depend on each government when it comes to crypto trading. There are still countries that have not provided support for crypto. If, in your country, your government support crypto, then you can use it freely and you can earn money from crypto.
What reward or insurance system do you mean? If that means the government will compensate for your lost funds in trading, I don't think they will give it or cover your loss because if you choose to trade, that is your choice and you have to know how to manage your money.
The gray zone countries are fine, they do not put too much regulations by making it legal, but they do not outright say that it is illegal neither. I believe that we should not be shocked about the fact that crypto has been a bit in the gray zone because it is something the world has never seen before.
Nowadays we are hearing nations making decisions obviously, but that doesn't change the fact that there are still some nations who are taking it a bit slow. The ones that made it legal, like you could trade and all without a problem but at the end of the day you would be required to pay a hefty sum of tax as well, so not sure if that's better or worse.