[kohanz]

The thing with an activity as ubiquitous as driving is that when judging the usefulness or conversely danger of a certain aspect of it, you have to consider the least-skilled (or more susceptible to distractions) group of drivers. Saying "I can do activity X and driving together" is a nice anecdote, but it doesn't give much information as to the overall safety of activity X and driving.

For example, I would guess that there are people out there who can safely drive a car with their blood-alcohol level past the legal limit. There are presumably people who can multi-task (text or phone & drive) safely too.

Once these activities become acceptable, you can't pick and choose who is allowed to perform them based on some skill metric.