Sebastopols are some of the sweetest geese, especially if you hand raise them. They are not as loud as some geese, but no geese are exactly quiet. They are a bit smaller than other breeds, so I would say they are kid friendly. But you can't just get one goose unless you are planning to give it constant attention. Geese like to hang out in a flock even more than chickens, so you really should get more than one.