Teens who use prepaid cards are at risk of racking up a large number of hidden fees, so parents should be careful when choosing a card for their kids. Fortunately, the growth of the prepaid card industry means more options to choose from, as long as the buyer reads the fine print and fee schedules. Although Walmart recently advertised its Walmart MoneyCard as a way to "Save on your overdraft fees," the card itself carries a number of charges that include a $3 issuance fee. Others charge upfront activation fees ranging from $2.99 to $14.95, though some of these fees are waived for cards purchased online. Out of the 24 most widely issued prepaid cards, 15 impose a monthly fee of $3 to $9.95. These fees can add up quickly for younger consumers. Parents can better choose a prepaid card for their teen by considering how it will be used most often and avoiding cards that charge fees for those actions, such as withdrawing cash from an ATM.