Reba wrote:well then Passport Canada should update their website

Why, Reba? Registrations still exist, and for people in their 30's that is what they have, and they are still valid.
It's simply that for children that would still be dependent on their parents, like those in this thread, registration would not be available
CIC does indeed mention this:
http://www.voyage.gc.ca/faq/birth_naissance-eng.asp#1