I was surprised to learn that something I said in a voicemail message to a friend was common knowledge to the recipient's children, ages 20 and 17.
When I asked about it, my friend shrugged and said, "Meh, my kids access my voicemail and listen to a lot of my messages. They don't listen to each and every one of them, but they did happen to hear that one. I don't really mind, I don't keep anything from them."
If you have both voicemail and children, do your children have your password? If so, does it matter what their ages are, minors or adults?
Even if they had it, I never get any messages.