I assumed that after starting the car that you had to press on the footbrake pedal and similtaneously press the handbrake to release the brakes, BUT only the first time! Thereafter the "Drive-Away Function kicks in allowing the car to release its own hanbrake when it senses the drive being taken-up by the clutch.
I have had the experience of the brake not releasing when "driving away" but Very Rarely! and only on fairly steep inclines.

And before anyone pounces on me "NO I HAVE NOT READ THE F****** Manual".

Dunk