Report Abuse. There is no age restriction but pet shop owners are usually very responsible people and will not sell a puppy or a kitten or anything else to an unaccompanied child.
When the price goes up, naturalization rates go down. The current filing fee for Form N-400, the Application for Naturalization, with U.S. Citizenship and Immigration Services, for adult applicants is $680 ($595 plus an $85 biometric fee). This is certainly a prohibitive cost for individuals living below the poverty level.
$725 is the cost to apply for U.S. citizenship through a legal process called naturalization, a process that turns legal permanent residents into U.S. citizens.