I use a handsfree set and I am really very happy about it although before getting it I didn't see a need for that. From my experience some people like the idea of handsfree set, some don't. Mostly all of whom I know and have it are happy with the choice. I also drive for already more than 10 years and can say, that this set helps me a lot while I am driving.
Here in Lithuania we have a law that don't allow you to drive and talk over the phone without handsfree set at the same time. I agree with this law, because it doesn't prohibit driving and talking, just makes it safer and more comfortable. The question is, why so many people still don't have a handsfree set? It would help a lot to make your life more comfortable and also would help to avoid a fine, which, here in Lithuania, is about 100$.
I've been interested in prices for various sets. Mostly all of them cost much less than the fine. That means that you can not only make your life more comfortable, but also save a lot of money by purchasing the system. I think, one of the reasons why not all people still have it, is just a habit. And we all know, that changing the habit is the most difficult part. That's why we have fines for not following the rules, otherwise for not changing the habit. It's funny, but even the fines doesn't help people to change the habit.
One day I came up with the idea, how this could be improved. My idea is to change the fine with opportunity to buy a handsfree system. That means, if the policeman stops a driver who is talking over the phone without the system first time, he registers the violation and instead of fine, offers driver to buy a handsfree set at any shop. So, instead of going and paying the fine, driver can go and purchase a system. The driver is happier and the habit has more chances to be broken. I think this encouragement might work as helping solving this problem in general. What do you think?