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.
They can still make money from it. They don't have to ban it and just impose a regulatory tax that every profit gained through crypto is taxable and has to be declared as income.
In some countries, they're doing this. Instead of putting a ban to crypto related income, they're simply giving their people freedom to get along with another source of income through crypto trading.