Before the existence of bitcoin they're many other digital economic assets that is in line with government policies like crude oil, gold and much more, government where comfortable with this assets trading online, including forex but crypto currency like bitcoin that would have change lives and alienates poverty from the world, government are afraid of its cumulative value.
The government won't immediately adopt the concept of Bitcoin since it grants everyone financial freedom, whereas the government is only interested in the meager revenue it can raise through taxes.
Crude oil and gold are traditional trading goods that are still in use, but the concept of Bitcoin has eliminated the notion of gold investment for young people since they now perceive it as being safer than investing in actual assets like gold.
Do you think bitcoin will stay if government totally remove their hands or stand against it?
I don't think Bitcoin is dependent on anything because governments were not aware of it when it was established, and the concept of Bitcoin is independent of any government policy; hence, Bitcoin will exist even if the government decides not to get involved.