*you can buy or sell cryptocurrency legally ( because central bank approves this if ever)
*you can have this kind of secured crypto savings account who doesnt get hacked
*you can loan crypto for initial capital investment for trading and others
*you can send crypto to someones account limitless without fees.
Is this even possible? What would be the effect if the government impost this?
I don't think that this will be a great idea since the idea of Bitcoin is more on self managing and freedom. Also, the examples you are saying is just like the functions of alot of exchanges online expect the loan thing. It is great but having a site with secured crypto "savings account" is not that easy to say since exchanges are saying the same thing but they are still being hacked.
I am ok on how I manage my coins rather than letting the government hold it for me.