I live in the hilliest place in the country and both my daily drivers are manuals but I almost never use the handbrake to start. There are very rare occasions, of course, but for the great majority of the driving I do the handbrake is used for parking only.
One of the measures that has been adopted here in British Columbia is graduated licencing. The road test is much more difficult than in the past. The first one, for a class 7, is 45 minutes long and the second one, for the full class five, is an hour. Graduated licencing has really reduced the number of fatalities in the province, especially here in Vancouver where many parents buy their kids Porsches as symbols of their "love." In fact, in my neighbourhood there is a Lamborghini with an N sign (novice driver) sign in the back window. Any moving violation results in an instant two year suspension while driving on a N licence. One of my kids is on an N now and she is on her best behaviour as was my son before he got his class 5 last year. They also knew if they got any tickets I would take the car away from them forever! Now, when they graduate, they get to keep them and I pay the insurance. A little incentive to stay in school as it were!
For motorcycles, the N limits you to 125cc for two years which has really reduced fatalities because you can no longer take your class 6 test on a 50cc scooter and then jump on an Hyabusa.