How old was your baby when he/she could escape the crib?

Kristen

My son is only 9 mo but when he gets his elbows and arms over the rails of the crib and stands there I start panicking. It almost looks like he could place his feet on the rails and extend his legs and he would be over without a problem. I know it’s probably just my fear, but I’m wondering when others started actually having to worry about this?