I totally disagree with that statement. I have an 8 month old Red Star that I've had since she was 1.2 ounces. She has laid over 90 eggs! I take her for rides on my mobility scooter, twice a day which she LOVES and never ever tries to fly off. We stop at certain places where she can get off and scratch for bugs and whatever. She has a crate with a nesting box with straw (hard cardboard kitty litter box) and roams free in the house with a chicken diaper on purchased from Google. She loves my two dogs and sleeps with them regularly. It just all depends on how you raise them and making sure you keep them happy. She's trained to never step off the grass of my property onto the road and never, ever, does. I love this girl!Unfortunately, chickens aren't meant to be indoor pets. They won't be happy living indoors.