That reminds me of my oldest son. He was very consistent in applying the parking brake EVERY time he parked a car...but he NEVER remembered to release it. He was driving newer cars, the warning lights worked, but it made no difference, often driving hundreds of miles with the brake engaged. I kept telling him that if he was not setting the brake hard enough to notice it when he started to drive, then he was wasting his time setting it at all! So the moral, if you aren't sharp enough to notice the brake is on, then a light isn't going to help.
Oh...the end of the story. Now 33, my son has destroyed 5 cars. I don't let him drive mine, so he rides a bike to work. He never learned.