Shakespeare did not relate to witches, but many people belived he wrote storys on witches because him or someone in his family was a witch.
The Shakespeare Code
Shakespeare's "Macbeth" .
The Witches.
In Shakespeare's time, it was common for male actors to portray female roles, including witches, as women were not allowed to perform on stage. Some interpretations and productions have depicted witches with beards to emphasize their otherworldly nature or to challenge gender norms. However, this portrayal is not a definitive characteristic of the witches in Shakespeare's "Macbeth" and varies by production. Ultimately, the text itself does not specify that the witches have beards.
The witches
Why do you think Macbeth is startled by the witches prediction's in act 1 of Macbeth by Shakespeare
WILLIAM SHAKESPEARE 'MACBETH AND THE THREE WITCHES'
The witches speak in riddles because they are just that - witches. When have you ever heard of a witch not rhyming? It all originated from William Shakespeare's work.
They thought witches were real in his time, so they were a natural predictor for telling the future in his plays.
We do not have any records of what Elizabethan witches (assuming there really was such a thing) might have thought about anything.
For your first Shakespeare play try Macbeth. It has witches, murders and battles and its the shortest.
They were in his source material, Holinshed's History of Britain.