It is very dangerous to use a mobile phone while driving. Talking on the phone while driving is very dangerous, especially in the case of bad road conditions, which has a great influence on drivers. Because you have a mobile phone, it is inevitable that your hands can't always be on the steering wheel. You need to concentrate on driving and can't tolerate any distractions. Talking on the phone while driving will ignore some road conditions or have no time to respond, leading to some tragedies. Therefore, the purpose of this punishment is not a means of punishment, but the purpose of punishment is to hope that the driver can correct it.
(2) I didn't pay attention to my deduction in time. As can be seen from the penalty rules, the penalty interval is still relatively long, and the driver is not always concerned about my penalty. If I can find my own illegal behavior earlier and correct this wrong behavior in time, I won't be punished many times in the same place.
(3) The punishment for driving and calling is upgraded. Since April, the punishment for making phone calls has been upgraded. This is actually to enable drivers to focus more on driving and be careful when driving.
So I think this kind of punishment is reasonable, there is no arbitrary deduction, and I even think the punishment is not enough.