Because memorizing Japanese characters involves imaging and the left hemisphere of the brain, strengthening spatial memory, just like mathematics and science. The foreign languages normally train the right hemisphere. To learn Japanese enables inter-hemispheric communication and boosts reasoning and creativity.
Because tracing characters is a fun game for children allowing them to perfect dexterity and the use of space. They will make progress in Japanese but also in writing and drawing.
Because the learning of foreign languages is very rewarding and opens new horizons.
Because a language is learned naturally during preadolescence playing and by curiosity. To start as young as possible is also a chance to be fluent in adulthood!
Because in adulthood, a person who speaks Japanese or has done an introduction in that language will be original. It is impossible to focus on Japanese without having qualities such as rigor, discipline and thoroughness. It is an asset that others will not necessarily have.
Because we live in a multicultural world. Japanese is a discipline taught in the best private schools in the world and remains a bold educational choice.