I feel the US will legalize Bitcoin, I don't see China opening the door for Bitcoin. I heard that the Chinese government is constantly telling citizens to invest in gold, silver, and diamonds.. and prohibits citizens from investing in cryptocurrencies, especially invest in the ICO.
The US first legalized bitcoin, even in their country there are already many Bitcoin ATMs that make it easier for bitcoin owners to carry out their activities using bitcoin. The infrastructure available in the US is more modern than China, so the use of bitcoin as a payment tool is easier. While China is less aggressive in responding to bitcoin as a currency, it is very enthusiastic in developing the blockchain, the technology that accompanies bitcoin.