At what age do children need to have doorknob covers installed for their safety?

At what age do children need to have doorknob covers installed for their safety?

Kimberlee Mitchell (National Child Safety Expert ) gives expert video advice on: How should I babyproof my bathroom cabinets?; How can I keep medicines and other dangerous products from my baby?; How are doorknob covers used in childproofing? and more...

The doorknob covers work when your child is up and walking and able to do side-to side wrist movement. However, if you have lever locks in your home, your baby can get into that room even before that child is walking age, because all they have to do is crawl over to the door, climb up the door, and then hang on the lever lock and they're in. So, I would say, for crawling-age children, you probably want to put the lever locks or the top door locks on, like I said, when they're crawling. And when your toddler starts to walk, it's a good time to put on those knob covers.