Do I have to assign all my families a portal User ID and password?

No, neither! Their User Login ID is their contact email, and the system will automatically assign and email them a random initial password when they first click the 'Forgot your password or need to get started' link on the login page  (or they may have established their password when they used the Registration Form). See the Introduce your Parent Portal / Instructional Video page for examples of how to educate and promote the portal to your customers.