Starting Friday 7/1/2011, Instead of graduating from their booster seat at age 6, all children under age 8 must use an approved booster seat or car seat while riding in passenger automobiles, vans, and pickup trucks. Exceptions: children under age 8 who are taller than 4’9″ as well as those children who have a physical or medical condition that prevents restraining them as required by law. Your first offense = $50 fine and one point. Second offense = $100 and two points. It’s likely cheaper to buy it than risk it, and it’s for the kids’ safety.
You can buy a cheap seat at Target or Walmart for around $20. There really is no reason to not have your child in a car seat or a booster seat. If they complain, oh well, you are doing your job as a parent!