If the goal is a high school diploma, then actually skipping required courses once in high school is harder because of credit requirements necessary for diplomas and because certain classes require prerequisite courses being taken. Without a testing out option this can be difficult.
The headmaster at DS's school mentioned this to me. He said that there's a lot of flexibility in middle school, but graduating from HS requires 4 years of English, x years of math, x years of science, etc. etc.
So if DS were to, say, skip 9th grade, he'd still have to do 9th grade English simultaneously with 10th grade English.
Val
