When you add a reader from the staff side of your site, you will be prompted to enter in all required fields, including age. Since a reader's available challenges are based on age, once you populate that field, any available challenges applicable to the reader's age will appear at the bottom of the Add a Reader modal. For the reader to be enrolled, you must check the box next to the challenge(s).
When a staff member is signing up a reader, the staff member will not be required to select a program, but should so the reader can be enrolled in that program!
Library Administrators: Train your staff members to always select a program!