Actually, if his mother lost the original, it may not be a simple thing to get a copy of the original. Indeed doing so may be a violation of Hawaiian law.
As I have pointed out, some juridisctions, New York City being one, do not release copies of the documents generated at the time of a birth, but only respond to requests for birth certificates by issuing a new document reflecting the facts of the birth as maintained in the relevant county’s or municipality’s records. (In the case of New York, the document is called a ‘Certification of Birth’, and contrary to some posters erroneous ideas is considered adequate proof of U.S. citizenship by the State Department for the issuance of passports.)