On November 6, Prince Hisahito, the eldest son of Prince Akishino and Princess Kiko, celebrated his 19th birthday. This milestone is particularly significant as he is set to participate in a coming-of-age ceremony, a traditional event in Japan that marks the transition from adolescence to adulthood.
This ceremony is noteworthy as it is the first of its kind to be held within the Japanese imperial family in four decades. In Japan, reaching the age of 20 is typically recognized as the legal age of adulthood, but for members of the royal family, special ceremonies can be held at 19.
Source: www3.nhk.or.jp