We don't advise using the Tarot to give readings for other people, nor accepting a Tarot reading from anyone else.
The Tarot cards can be used by anyone for their own personal guidance, if that person is sincere in seeking to understand and follow the will of divinity.
"If thou canst not make thine own self what thou desireth, how shalt thou be able to fashion another to thine own liking. We are ready to see others made perfect, and yet we do not amend our own shortcomings."
—Thomas à Kempis