Regarding avoiding governments to shut it down... well... if it ever gets sufficiently widespread to threat their monetary policies, you may be sure they will try to shut it down.
But... how do you shut down a P2P system?

By labeling everyone who participates as a t3l2l2ol2ist and slapping them with fake charges to aid in prosecution. Imagine: The LARGEST t3l2l2ol2ist network to have existed as of yet.
Word intentionally obfuscated.
p2p systems cannot be shutdown unless internet connection is barred !!
But the masses can become afraid by instilling fear