All these talk about governments legislating bitcoins sounds like they are afraid of bitcoins or something. I mean what is there to legislate? They don't legislate food/water, do they?
Yes, I'm certain in most areas of the world, governments legislate control over food & water.
It is very important to take control and create laws/guidelines as to all water types, whether
for drinking use or commerce/recreational use.
It is also very important for 1st & 2nd world governments to attempt to protect their citizens
from certain types of harm that could be caused by food. These governments need to guarantee
that certain products are what they represent to be, they don't contain harmful substances, ensure
the meat is not diseased, and so on and so forth.
Normally, as long as you live in the "civilized world", all things are governed by laws in some way.
Nothing escapes its grasp (except Bitcoin/bitcoin - which is one reason why it is special).