A unique yet traditional “hair-shaving” ritual practised in mainland China and Taiwan involves shaving a newborn’s head when they are about one month old, followed by applying a mixture of egg yolk and onion juice to their scalp. It symbolised that the child would grow up intelligent and had the potential to become an official in the future. The hair-shaving ritual, rooted in traditional Han Chinese child rearing customs, dates back to the Western Han dynasty (206 BC – 220 AD) and was once also...