The technology promises speed and accuracy in implementing laws like Australia's social media ban for under-16s -- in force from December 10.As a user, verifying your age with the technology is a breeze. All it requires is taking a head-on selfie with a phone or computer camera, and an automated decision is made within a minute. "We estimated your age is 18 or older," read a pop-up window on the Roblox gaming site.At startup Yoti's spacious London office, mannequin heads -- some fitted with wigs or masks -- ...