To simply those list, its decentralized currency, banks and government can't make a profit from cryptocurrency so they would rather ban and ensure that people would stick to the regular currency which then can regulate. Its nothing new, tons of government bans Cryptocurrency to the point that there are certain countries bans mining as well.
There are some governments that already have regulated Bitcoin and imposed a tax on cryptocurrency earnings. So, saying that governments can't make a profit from them wouldn't be true. Because of this reason, I think regulating Bitcoin is more advantageous for governments rather than banning it.