In my experience workplaces that actually value mistakes are rare. That is, not only tolerate them, but value them as learning opportunities, as I believe they

In my experience workplaces that actually value mistakes are rare. That is, not only tolerate them, but value them as learning opportunities, as I believe they should be, and as the linked article proposes. Such workplaces do exist (I've heard), but not in my own anecdotal experience. Mistakes have always tended to be treated as something shameful, something to be hidden unless disclosure is absolutely unavoidable, and something to accuse people of, unless the offender has been a management favorite or something similar. It's come to the point where I've acquired a nagging suspicion that this is how it needs to be. That 'to be kind' will always be icing on the cake so to speak, no more. Maybe I've grown too cynical.