My daughter does not have email, and forgot her apple ID password....How do I reset it?

If a child account:

Create an Apple ID for your child - https://support.apple.com/HT201084

- "Your email address is the rescue email address for your child’s account, and you can use it with the security questions you provided to reset a forgotten password. You can keep your your child's account more secure with two-factor authentication."

If an adult:

Click on this link to read what to do "If you forgot your Apple ID [Account] password" --> https://support.apple.com/HT201487

or go directly to this link --> http://iforgot.apple.com/

Also read about "What to do after [or before] you change your Apple ID email address or password" --> https://support.apple.com/HT204071

If you still need help:

Contact Apple for help with Apple ID account security "This article provides country-specific Apple Support contact information for customers seeking help with their Apple ID password or other security-related issues." --> https://support.apple.com/HT204169

Unless you live in a country where you can use a telephone number for an Apple ID, you absolutely must have an email address to have an Apple account.