To answer your question, how about never, is never good for you? Sorry to be facetious, I'm just annoyed. There seems to be this idea, I'm not quite sure where it originated, that disabled people (I'm blind so have seen this very plainly when dealing with things supposed to be accessible to the blind)... There's this idea that blind people are supposed to take the most basic crumbs and shut up. That is, if you can use something to some extent, it doesn't matter what you have to give up. Your time, energy, privacy, and so on aren't important, you should be happy just to use the product in a somewhat limited way. People say that a product is usable with Amazon's Echo, and seem to be dumbfounded when I say that I am not remotely interested in having a constantly recording microphone, or even a microphone which may be constantly recording, in my house. Indeed, I thought that's what distinguished pre-1989 eastern Europe from the west, I have read of people who believed, whether rightly or wrongly, that their phones were recording even when on hook and they ought to speak in a room away from the phone if they wanted privacy. I don't need to guess that things like Echo are listening, I know they are, how could they identify their wake word, or even pretend to do so, if they weren't? All that is to say that people take the view that blind people should just be happy to use anything and forget about the luxuries available to others, such as basic privacy. With the greatest regrets, I have to say I'm not happy to do that. Not, of course, that any of this will change.