What do you think about a state seat belt law?

people in regular vehicles (car. truck, etc.) are required to wear seatbelts, however state police and others do not have to wear them. the one think that i am conserned about is that i have to wear my seatbelt and receive a 50-100 dollar fine if caught without it, yet our children travel to and from scool every day mon-fri and busses are not required to have nor are they equiped with seatbelts to protect our childen. what do you think about it.