My autistic non-verbal daughter is 8 years old. She has other developmental disabilities as well. She just started unlocking doors this year and wandered into a neighbor's house that had the garage door open. She let herself out into the garage and pushed the button to lift the garage door. I was in the bathroom doing my business and it only took her a minute. We have since added chains to the doors near the top. It will be several years before she figures those out, but she will one day. We have a creek at the end of our street. The access entry used to not be fenced, but now it is. My daughter loves water and she has been continuously taking swim lessons nearly year round for 4 years. Most people will never know what it is like to have to be constantly vigilant, constantly tuned in to your child's movements, sounds and whereabouts for the rest of your life. And to worry about who will take on this responsibility once you are gone. It is exhausting to never feel like you can relax, take a nap, etc. without having a second person around. When I was in the bathroom my husband was supposed to be keeping watch over her, but he fell asleep on the couch. When I leave a room, I announce it so he knows he is in charge of keeping track of her. It is like having a toddler for life. I have nothing but sympathy for these people. I don't know how I could go on if something happened to my little girl.