While cash is the most immediate form of payment and accepted everywhere (in fact preferred in a number of cases), credit cards and traveller's checks can be an alternative. But there are pitfalls.
Passports issued to children under age 16 are valid for 5 years. Children under 16 must renew their passports in person and follow the same guidelines as when the passport was first issued, including being accompanied by parents or guardians. Two current passport-sized photos must be included with the application.
1 Obtaining a passport for kids requires both parents (or guardians in the absence of parents) to bring the children to a passport agency, local post office municipal/town/county government offices, or to the local library. The passports are valid for 5 years until the age of 16, at which time a new passport will be required. 2  The requirements needed when applying for a minor passport are as follows: evidence of citizenship, photo identification, parental consent, passport photo, application forms, and passport fees.