Exposition - Should 7 year olds have to sit in a booster seat?

I believe that children of 7 years should sit in a booster seat in a car.

Firstly, it can cause the child that is not in a booster seat to go flying through the windscreen. Secondly, the seatbelt can cut through your neck. Finally, it can make you higher.

Children of 7 years should sit in a booster seat because it keeps you safe.