Do you think it's weird if a parent and child have a secret apart from the rest of the family?

Like if a father told his son a secret that no one else in the family knows not even his wife. And vice versa with a mom and daughter. Is that weird?

Do you think its weird if a parent and child have a secret apart from the rest of the family?
Do you think it's weird if a parent and child have a secret apart from the rest of the family?
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