I can transact with people who choose to use it and convert to fiat currency when needed. I have been doing this for over ten years now.

It works. What's the problem?

Are you saying that me merely using Bitcoin endangers others and is akin to driving into oncoming traffic?

edit: Sure, driving into oncoming traffic is bad. So let's criminalize and punish that, rather than banning vehicles because I could drive on the pavement and cause havoc.