If you ban Bitcoin, then Bitcoin will become forbidden fruit and people will want it even more in my opinion. This will just give a sign to the world that we are doing the right thing.
Not that I think a ban will ever happen, but who would want a form of money that can't be spent or accepted? Bitcoin isn't drugs. It's not fun or addictive or profitable regardless of legality. It serves a purpose. Banning it stifles that purpose and people will move on. They're not short of alternatives right now.
I don't think Bitcoin will be banned as well, in any country. I was just speaking figuratively, what if...!!! If they would ban Bitcoin, they could have as well banned Internet 20 years ago!
In essence Bitcoin was 'banned' already before it became more well accepted and adopted by others.
Makes more sense for governments to introduce their own alternatives to undermine Bitcoin.