If she shares your account she will have access to all of your cloud content. Is your daughter a minor? I know some people have been setting up separate accounts, entering their debit card and then removing it once they made a purchase. This would keep them from accidentally ordering apps, books etc on your dime. If your daughter is an adult, she should set up her own account and use her debit card. In either case you can get them a gift card for Amazon that can be applied to their account.