If they don't have a baby, you don't have to milk them. If they have a baby or two the babies will look after it for you!
Beware -- goats are very difficult to contain and if you don't contain them they will get into and onto everything! Vehicles, buildings, fences, trees. They are extremely agile. We got some once to clean out some bush and when they ran out of leaves from ground level, they climbed the trees. They would jump onto our 4x4 pickup and try to get into the house. An electric fence will NOT contain them if they want to see what's on the other side. And they always want to see something else.
But they are awfully lovable and will be like a pet dog if you want them to be. (except a very stubborn dog)