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.
What is the fee for Form N-400, the application for U.S. citizenship? The filing fee as of 2010 for submission of the Form N-400 is $680.00. This fee includes the cost for the application ($595.00) and a biometric fee of $85.00. The biometric fee covers the expense of being fingerprinted and photographed after your application is submitted.