In practice, you can only ban yourself from using Bitcoin.
Discussion
Why is nostr:nprofile1qqsw4v882mfjhq9u63j08kzyhqzqxqc8tgf740p4nxnk9jdv02u37ncpz4mhxue69uhhyetvv9uju6mpd4czuumfw3jsz9nhwden5te0wfjkccte9ec8y6tdv9kzumn9wsq3yamnwvaz7tmsw4e8qmr9wpskwtn9wvql3tqm worried about the government banning Bitcoin then. She doesn't know how it works.
I assure you she understands it better than either of us. China “banned” Bitcoin. But did it keep people from using it that still wanted to…No.
You are either extremely naive, or wantonly obtuse. Governments can ban the possession/use of firearms, but you can ignore that or not. It doesn’t affect you if you self-custody firearms (or print them). In changes what you are in the eyes of the law though. Many people will decide it isn’t worth going to jail over such things