It shall be unlawful for any child under the age of eighteen (18) years to be upon any public highways, roads and places in Clallam County between the hours of 10:30 p.m. and 6:00 a.m. on nights prior to days when school is in session, and between the hours of 12:30 a.m. and 6:00 a.m. on other nights, unless accompanied by the parent, guardian or other person having legal custody and control of said child.