You should have to take them every 10 years, and then once you get to a certain age, lets say 65, you take again, and then again at 70 and then after that every 1 or 2 years. Its sucks, but s*** goes fast bad when you're old.
There are plenty of old people I used to watch shuffle into Wawa (like a 7-11 but way better), barely able to pick up their feet. They are still driving from their test in 1918! You think if your kid ran out into the road that they would have the reaction time to stop??? I also know plenty of senile people who still are able to drive as well. Its all bad