In New Zealand we have a graduated licence system it goes like this.....

You must sit a theory test (25 Questions) to pass you must get 23 correct, 
and not more than 1 wrong in the last 6 questions. You must get 4/5 oral 
questions correct as well.

This is half way to getting a learner permit.

The next stage is the basic skills course last about 3 hours.  You now have 
a learner licence.
You have a learner licence for 6 months and are subjected to the following 
restrictions.
You must always carry it
Zero alcohol before riding
250cc limit
Never carry a pillion
No night riding (10pm-5am)
Must display an "L"plate
Must not exceed 70km/h

After 6 Months you can apply to take your practical (on Road ) test.  The 
testing officer is a police officer who follows you on the road.
Pass the test you now get a restricted licence you have this licence for 
18months and  are subjected to the following restrictions.
You must always carry it
Zero alcohol before riding
250cc limit
No pillion except in a side car
No night riding (10pm-5am)
Must display an "L"plate

Afetr 18 months you can apply for a full licence...no further testing of you 
ability to ride is required ( infact you dont even have to ride from the day 
you pass you test just apply 18months later)

You can reduce the restricetd time by half if you do a Defensive Driving 
Course or complete an Advanced Riding course at a Motorcycle school 
(Advanced in this definition is whatever the motorcycle school considers is 
advanced, ie Beyond a learner Stage).

The age of licensure in New Zealand is _15_years