I found this...
To be eligible to apply for a WWDC 2015 Scholarship, you must be either 18 years of age or older and registered for free as an Apple developer, or you must have permission to be sharing a Registered Apple Developer account with your parent or guardian if you are between the ages of 13 and 17.
You must also be enrolled part-time or full-time in a course of study, or be a member or alumni of one of the listed STEM organizations.
Void where prohibited by law. Eligibility is subject to verification by Apple and you agree to cooperate with Apple to provide information about your educational status and membership status. Employees of Apple Inc., their affiliates, subsidiaries, advertising and promotion agencies, and their immediate family members and/or those living in same household of each are not eligible.
2016 - UTL
2017 read as:
To be eligible to apply for a WWDC Scholarship, you must be:
- 13 years of age or older;
- Registered for free with Apple as an Apple developer or a member of a paid Apple Developer Program; and
- Enrolled part-time or full-time in a course of study, or be a member or alumni of a STEM organization.
2018 - Pending