Why is that worrying? We currently don't really have self-driving cars, in part because software is bad at interpreting images. The captchas are literally us

Why is that worrying? We currently don't really have self-driving cars, in part because software is bad at interpreting images. The captchas are literally us teaching machine learning systems to do it better, because they currently can't. When computers can do it well, captchas will be different.