Final answer:
The statement in the question is true. Child seats are mandatory for all children under the age of six years according to Japanese Traffic Law. It is important for parents or guardians to ensure that child seats are properly installed and used to protect the child in case of an accident.
Step-by-step explanation:
The subject of this question is Law. The question is asking whether child seats are mandatory for all children under the age of six years according to Japanese Traffic Law. The statement in the question is true. Child seats are indeed mandatory for all children under the age of six years according to the Japanese Traffic Law.
This law is in place to ensure the safety of young children while traveling in vehicles. Failure to comply with this law can result in penalties and fines. It is important for parents or guardians to ensure that child seats are properly installed and used to protect the child in case of an accident.