Laws and enforcement is not something that only governments know how to do.
Yes, they are. Any entity who makes and enforces law is, ipso facto, a government. An entity that doesn't do that isn't a government, even if it calls itself one. That's what governing is, and government is simply that which governs.
I suggest you watch this short video then, which explains how laws, protection and private property can be created and enforced in a free market: https://www.youtube.com/watch?v=jTYkdEU_B4o