Baby horoscopes are no less accurate than other types of horoscopes. All horoscopes are completely worthless, since astrology has absolutely no scientific basis. You should consider consulting a fortune cookie instead.
They are not accurate at all. Instead of spending your money on a horoscope, go to a library and ask for a book on child's psychological development. That will allow you to create your baby's future and not to doom it only to stars.
No horoscope is accurate. In this modern age it is purely for entertainment, but in ancient times, before science, it was thought of as factual. Buy diapers instead.