I hope that this post is a troll. I do, really.
Goats are terrible pets (IMO). They are farm animals. Yes, they are sooo adorable when little, but like all animals they will grow up... then they will either eat all of the flowers/veggies/plants in your yard and ruin your lawn or you have to restrict them to a proper enclosure. Unless you have a farm or property that is set up for farm animals, do not get a goat.
Goats are social animals that should be kept with others.
Goats stink. It's doesn't matter if they are male/female neutered or not. They smell.
You can only milk a female goat if she has given birth. After having a kid you will be able to milk her for a while, then you need to get her pregnant again and have another kid to keep the milk flowing.
Before you get any kind of animal (goat, dog, hamster... whatever) please learn how you properly care for them. Consult books and people who have pet goats. Especially the latter. We have friends that have a bunch of rescue goats... when you hear them talk about how much work these animals are, the vet bills, the feed...
To me it sounds like you are getting in over your head... and you do not say how old your daughter is... but I am not sure if age really matters... in any case, when you get a pet you better be prepared for it to become your responsibility as soon as the novelty wears off.
Sorry but this sounds like a horrible idea.