Well, a long-term ban on personal BitCoin usage (i.e. merely mining and sending/receiving) is unenforcable. More likely a ban would target the commercial means

Well, a long-term ban on personal BitCoin usage (i.e. merely mining and sending/receiving) is unenforcable. More likely a ban would target the commercial means of acquiring BitCoin. So mining enterprises and exchanges and payment processors would be the targets of any ban just like in China with the latter two. If you make it impractical to buy or otherwise obtain BitCoins then you've as good as outlawed it, allowing only small, black market, person to person exchanges.