how long do children's passports last
Â· just now. Report Abuse. A child's passport is issued if the applicant is 15 or under. They are valid for 5 years from date of issue to date of expiration. A person who is 16 or 17 is issued an adult (10 year) passport, but one parent must sign along with them.ating Newest Oldest. Best Answer: Childrens passports (issued from 0 to 15) are valid for 5 years; adult passports (issued from 16) are valid for 10 years. http://travel.state.gov/passport/passpor...