Should the driving age be raised to twenty-one? 

I think the driving age must not be raised to twenty-one. Because law and government know an 18-year-old boy or girl, responsible for his or her acts. And people usually go from high school to university in 18. So, in some words we can say you become an adult when you are 18. 

There are some new rules for those who get their driving licenses in Iran. They can only drive in the first year when there is a person with a driving license in the next seat. I think this rule is ridiculous in some ways. I say why should someone who got his driving license recently should drive if someone who is better at driving is next to him. 

In some countries, the driving age is 18, is it is in Iran. But in some countries, it is 17.in Alberta state in Canada or some states in US you can drive legally when you are 14. on the other hand, in Nigeria, driving age is 23.