YOu should add a password changing feature and a password security questions. If you sforget your passowrd you should be able to answer a question to find it out or change it.
That's a good idea. However, we cannot ask people younger than 13 years old for their email address. Without an email address, it would be really hard to create a password recovery mechanism that is reliable.
Andres Monroy-Hernandez | Scratch Team at the MIT Media Lab on identi.ca and twitter