I think the only way that cryptocurrencies can be stopped is if all people decided to just disregard and not use it. What drives the price of almost all cryptocurrencies is the general law of demand and supply. If government prohibitions can somehow affect its price, then a wide-scale global prohibition can somehow stop BTC, though it will definitely decrease significantly its price on the market, thereby making it obsolete.

Though what I mentioned above is highly unlikely to happen, still, we should not discount the possibility of it from happening. While its utilization is ongoing, better take the opportunity and grab such privilege of joining.