My two younger cousins both rode in boosters until recently. The older one is now ten, and he acctually reached 80lbs at about 6 but his mom found a booster that would work till 100lbs. He reached that at about 8 and he has been 5 tall since he was 9. His younger brother is 7 and he is smaller built so I figure his mom will keep him in a booster until he is at least 8 or 9. My aunt is very careful with her kids, and they live in PA and I think a previous poster said it was the law until 8 and 80lbs.
My niece is 7 she quit riding in a booster 2 years ago when she hit 80lbs. She is now almost as big as me. My nephew is 6 and still rides in a booster. Ds continued to ride in a rear facing carseat until he was almost two. At that time he was only about 23lbs, but he was so long that his legs were all cramped. Plus he started getting violently car sick and we hoped that turning him around would help. Unfortunately it only helped in the van, not in my car. He is still in a convertible car seat in the van, but he is quickly getting too tall. He is in a booster with a five point harness in my car, but he is even getting too tall for the last set of shoulder slots there. He is only 25lbs, and I dont trust him not to slip out of the car seat belt if I use it as just a booster, so I don't know what we will do. He is almost three now, so I figure his upward growth will slow down soon.
My niece is 7 she quit riding in a booster 2 years ago when she hit 80lbs. She is now almost as big as me. My nephew is 6 and still rides in a booster. Ds continued to ride in a rear facing carseat until he was almost two. At that time he was only about 23lbs, but he was so long that his legs were all cramped. Plus he started getting violently car sick and we hoped that turning him around would help. Unfortunately it only helped in the van, not in my car. He is still in a convertible car seat in the van, but he is quickly getting too tall. He is in a booster with a five point harness in my car, but he is even getting too tall for the last set of shoulder slots there. He is only 25lbs, and I dont trust him not to slip out of the car seat belt if I use it as just a booster, so I don't know what we will do. He is almost three now, so I figure his upward growth will slow down soon.







I just tell him what happens if he gets a spinal cord injury. That usually makes him feel good about being in a booster seat 






