Grade school is less a place for learning as it is a socialization experiment. Did you actually advance your level in any subject during grade school? Did your kid advance above their grade because of the grades that came before it? What's the utility in the school servicing your special child's aptitude when the school had nothing to do with either their current level or the lack of others'? But there are advanced level classes in some cases
If grade school is for socialization than it should be focused on socialization. Group activities, athletic competitions, creative projects, theater performances, etc.
Well, in many cases, it is. If the opposite of socialization is exclusively grinding problems, grade school is often quite closer to what you mention unless you deliberately seek a different style.
