We the points are valid according to government. But ban is not the right decision. Because you can ban it but you can't stop to use it for users. Here is some point by which government should be profited.
Like if government gives fully freedom to buy sell crypto then lots of company creat platform to buy/ sell. And people like to use those platform because it should be user friendly with trust. So government don't need to trace users transaction. Government can take Their charge from that company. So we can say that if government want to take benifit from this technology then they have to gives full freedom to use it. And made easy for users to use.