How old should your goat be before hooking it to the cart and pulling you? or does it depend on your/the goats weight? Im considering retaining a wether next year. lol Also for just around the barn,on the road,and some in a decently level field and wooded paths would a 2 wheeled cart be ok? I saw some really cheap plans for one and dont want to spend alot to make a 4 wheel cart. :? Do goats do ok leaving the herd to work or would it be better to use 2 goats?