This account is perfect for savers younger than 21 years old. See your bank or credit union's investment representative, who can help set up the right type of account.Minors with an adult, and adults 18 and over can open one of our three checking accounts in minutes. If you're 14-16, you can open a joint account with a parent or a legal guardian at one of our branches. Several large US banks offer sole-owned accounts to minors over the age of 16 without parental consent. In a Custodial Account. You can set up a custodial account through the Uniform Gifts to Minors Act (UGMA) or the Uniform Transfers to Minors Act (UTMA). Benjamin Franklin was an American polymath: a leading writer, scientist, inventor, statesman, diplomat, printer, publisher and political philosopher. Can my child enroll in online banking?