Unfortunately, "success" in this context can be a rather subjective term. Parental expectations as well as mental/emotional health of the child can make all the difference.
Personally, I have never expected an institutional education to meet my children's needs completely. Sort of like if you aren't height/weight proportional with standard measurements, you can't expect to buy off the rack and have the outfit fit like it's tailored for you. Having rather low expectations, I picked and chose my battles and didn't sweat what I considered the relatively smaller stuff. There were also many choices that involve the lesser of two evils. It helped tremendously that my children are mentally healthy and well-adjusted socially as well.
Well said!
