My son is 8 1/2 and he just stopped using his booster. He is tall for his age, but no where near 80 lbs (I think he weighs 66 lbs).
My daughter will turn 7 at the end of March and she still uses a booster, probably will for another year or two. She's average height and weight.
My daughter will turn 7 at the end of March and she still uses a booster, probably will for another year or two. She's average height and weight.