HRS §489-4
Separate facilities for men and women are allowed for privacy
This section says that having separate bathrooms, changing rooms, or schedules for men and women is not discrimination if it is genuinely needed to protect people's privacy. It only applies to real privacy needs, not to other reasons.
businesses
The statute, as written — Exception, privacy requirements
The provision of separate facilities or schedules for female and for male patrons, does not constitute a discriminatory practice when such separate facilities or schedules for female and for male patrons are bona fide requirements to protect personal rights of privacy.
LawTrove is not legal advice. The summary above is a computer-generated restatement — the authoritative text is the official version linked above.