Some authoritarian countries I'm sure will try but they will just be shooting themselves in the foot. You can't fight technology and innovation you will just drive it to other areas that will reap the benefits. I think it's past the tipping point of banning, it would be political suicide. Too many people now own it, many of them powerful and wealthy. Also all the major Banks and tech firms are on board, they are major donors and carry too much clout politically. Look at the front page of goldman sachs. Things could get crazy though so would recommend keeping a lot in self custody, just in case. Just watched a video on this topic too.
The Goldman Sachs Group, Inc. is a leading global investment banking, securities, and asset and wealth management firm that provides a wide range of financial services.
www.goldmansachs.com