Then everybody will wonder why and want to use them. The ban would not work anyway and it will make the government look really bad. There is a country in South America that has banned it but I dont remember which onw.
It looks like the ban can never reduce the use of bitcoin, until now there has not been countries that approved the bitcoin, but users continue to grow each year. Just like drugs, many countries that prohibit, even in my country, drug seller can be sentenced to death, but the drug circulation persists, and drug prices continue to rise. I am sure there is no problem with banning bitcoin.
i hope that government will not bane bitcoin, because of the interest of the people and the benefit that bitcoin is providing to the people. because people are not going to leave bitcoin in any case and they will continue bitcoin for a long time.