Cattle are considered sacred in various world religions, most notably Hinduism, Jainism, Buddhism[citation needed], Zoroastrianism as well as the religions of Ancient Egypt, Ancient Greece, and Ancient Rome, says Wikipedia.
In some regions, especially India, the slaughter of cattle may be prohibited and their meat may be taboo.
In honor of their exalted status, cows in India often roam free, even along (and in) busy streets in major cities such as Delhi. In some places, it is considered good luck to give one a snack, or fruit before breakfast. In places where there is a ban on cow slaughter, a citizen can be sent to jail for killing or injuring a cow.