Parental Responsibilities Outweigh Parental Rights

Just so we're clear:
If your child commits a crime, you (the parent) can be sued for damages.
If your child wants to take an aspirin at school, you must give permission.
But if your child says anything on the phone, which you pay for, you can't listen in, because your child has "privacy rights".

With rights should come responsibilities. If a child has privacy rights then a child should have the corresponding responsibilities. But no, the parent has all the responsibilities that go with this child's right to privacy.

If this is the law in your state (as it evidently is in Washington state), please contact your elected representatives immediately and ask them to change this law right away.