A new study by Cybersafety Research Center has found that more than half of the child safety features on major social media platforms do not work as promised, raising fresh questions about how well children are protected online.A new study found over half of social media child safety features fail, while Australia's age checks struggle to stop under-16 users. (Pexel/Representative image) (Pexel)Alongside this, an Australian study found that social media companies are failing at the very first step of checking users' ages, making Australia's teen social media ban much less effective. Australia introduced a world-first law in December that requires…