> We are not even close to the toddler who can recognize dad and mom I'm pretty sure we have technology at this particular level, even if it's not readily avai

> We are not even close to the toddler who can recognize dad and mom I'm pretty sure we have technology at this particular level, even if it's not readily available to the public. Distinguishing sexes, on the other hand, is a vastly more difficult task than recognising a handful of trained stimuli. Some humans have trouble reliably distinguishing sexes, especially when it involves people from ethnicities one has little or no experience with. Many toddlers, in fact, would have trouble telling sexes apart from mere photographs -- except where obvious clues like beards and stereotypical clothing are present. Edit: Then again, it really depends on the level of accuracy and compatibility you are looking for. Training a system to look out for stereotypical features (hair style, lipstick, earrings, beards, clothing colours, height, body contours) is definitely possible with current technology.