Anarchy works when it comes to trillions of cells in our body.

What a dumb comparison. Cells in our bodies aren't free agents.

It works in our love life and procreation (billions of people manage to fall in love, have sex, get married and have children without help from the government).

Well, you don't have to be an anarchist to agree with that. There are many things the government should simply stay out of. Although, it seems to me that we need some sort of government to uphold justice when it comes to wrongdoing concerning sex. Not to mention deciding who gets custody of the child in case of a divorce. And concerning marriage, it would lose most of its function without government.

It works with learning, skill acquisition,

Well, I don't like public schools either.

friendships and social gatherings.

Friendships and social gatherings are rather natural. Why would government ever need to be involved in that?

It works in a million different spaces, but somehow a road can't be built without government...lol!

Well, I'm for privatized toll roads, as long as they're affordable (like the toll roads in the US, and unlike the 407 in Ontario). This means no monopolies on routes from point A to B. If there are no monopolies, then unbuilt and unrepaired roads directly affect these private company's profits. But who would make sure a monopoly doesn't arise?