So 100 human sized objects get detected by the algo, and then 1, wearing this t-shirt, that fits most of the parameters doesn't. Very, very easy to adjust the algorithm to account for a t-shirt. This is cute, at best.

It's also then super easy to say that the individual wearing the shirt is likely to try to usurp monitoring. In practice this type of thing will likely make you a more prevalent target for monitoring along the lines of "what do you have to hide?".

Not that I agree at all with large-scale monitoring or think anyone should prove that they don't have something to hide. Only that it paints the target on your back.