look if you own the brain capacity to multi-task, then you might have the skills to talk on your phone, but 99% of people i've seen drive on the phone are either using 2 lanes at the same time, driving at 20mph, or are picking there noes with the other finger
tbh the driving test is way too easy for people nowadays, and they are way to may people out on the road that shouldnt be in control of complex machinary like bicycles never mind cars!