I believe that birds are meant to fly and if you can't make your home a secure place for a bird then you should seriously consider whether a bird is the right pet for you. It is perfectly possible to have an unclipped bird that doesn't escape through an open door or window, I prove that every day
Also a fact that is overlooked is that clipped birds often suffer from lack of exercise and weight gain, even if they are out of their cage all day they aren't flying and working those muscles, which can lead to liver problems and a shortened life
