I feel compelled to add my own little quip in here. Obviously long hair is not tobacco. But we must be very careful how far we take "nature" and what it dictates.

I do not have wheels, but I drive a car. God did not create me with wings, yet I fly. Does not nature itself teach man does not fly?

Such a position can easily lead very quickly into ridiculous areas. One might even say the Amish follow that principle.

"There is nothing that keeps wicked men at any one moment out of hell, but the mere pleasure of God." - Jonathan Edwards