Yes. There's a persistent belief that only the deck's "owner" should handle the cards, and that other people's energy will contaminate them. This has no basis in any historical tarot tradition. It emerged in the 20th-century New Age movement and has been repeated until it feels ancient.
The Practical View
In traditional reading practice, the querent (the person getting the reading) was expected to shuffle and cut the deck. Their direct physical interaction with the cards was considered essential — the handling was part of the divination process, connecting the person's question to the randomization of the cards.
Why Some Readers Prefer Solo Handling
If handling is a ritual boundary that helps you focus, respect it — but understand it's your personal practice, not a universal rule. Some practical reasons to limit handling: wear and tear on expensive decks, keeping cards in a specific order for a technique, or simply not wanting sticky fingers on your art cards.
The Real Answer
Your deck, your rules. But if you're worried about "contamination," a thorough shuffle resets everything. That's literally what shuffling does — it creates a new, random arrangement with no memory of the previous state. If anything, having the querent handle the cards deepens their engagement with the reading.