Yes, however... well, see Prag. ^
Edit: I actually MEANT to click NO, but somehow in the process my mind got confused and clicked YES. Oh well... Violence should be used in the most dire of situations on the large scale (between nations). However, on a small scale (between people) it is inevitable. It is human nature to not agree with everyone. Primal instinct has us play-fight, just look at puppies or kittens or whatnot. They play to learn, and if one gets hurt, oh well, they learn to not do that. So YES, life without violence would be nice... but it won't ever happen.