I think we all need to realise that accidents can happen very easily and it is up to us to ensure that we are complying with all the rules of the road to ensure our and others' safety.
Many people, who got used to being able to talk on the phone before the law change, find it tempting to make a quick call or look at a text message while driving.
It is not really worth it, because a moment's lack of focus on the road could result in an accident. The way to look at it is to think that if you don't put your seatbelt on, it could be your last car trip and if you don't stop to take that call, it could be the last call you ever take.
It only takes a moment to buckle up or to pull over to take that call, so rather do that than risk death or severe injuries.