It may be useful to note the definition of "child" and "young person" in the Children and Young Persons (Employment)Act, 1966 (Act 350)
"Child" means any person who has not completed his fourteenth year of age or of such age as the Yang di-Pertuan Agong may be notification in the Gazette prescribe.
"Young person" means any person who, not being a child, has not completed his sixteenth year of age.
Note the words "..has not completed his sixteenth year of age". "Berumur 16 tahun" can be a bit misleading. "Berumur bawah 16 tahun" might be more like it.