Hereditary witches would pass the Old Religion down their families for Generations.
Very few witches come from a family that’s practiced for generations. The majority of today’s witches are intiated into existing covens.
Solitary witches preform self-initiations or dedications.
There are people who claim to be Hereditary witches. Their Book of Shadows can’t be traced earlier than Gerald Gardner’s works (1930s).
As witchcraft moves into a new century there will be more Second and Third generation witches and Wiccan who will become Hereditary Witches.\