How can I disable e-mail required field for new members

 Hello, I am using the forum as a way to contact students, parents, guardians during this shut down at our school. Many parents do not have a e-mail address. I am wanting to register the parents and they will simply check in on the forum to check for notes from teachers and homework assignments for their children. Is there a way to disable the required field of e-mail when I am registering them for the forum?
 
 Thanks
 
 Jon
 

For email address there is not at this time. It used for forgot password/topic notifications.

They could put in a temp/fake email instead such as parent1@example.com parent2@example.com

Thanks, a fake email account worked great!