If your account has no passwords then follow advice from @Bob to set a password.
Not sure what device your daughter is using to access these, but obviously you are aware how dangerous the internet is. The best parental controls are you saying "don't do it". Everything that Amzon does on top of that helps prevent accidental clicking, but no system is clever enough to protect an account from the wiles of the youth of today :(
There are Parental controls on most Amazon accounts and Amazon devices. I understand that they may not be available on 3rd party devices and/or apps :(