It is extremely common for students to “reclass” when they enter private school, particularly boarding school.
Many of these schools require a level of a social and/or self-management maturity that isn’t necessary for kids living at home or in less rigorous environments, so they are supportive of kids who use a “redo” year (9th, 10th, or 11th) to ensure they’re set up for success.
Because many of these schools have so many high-achieving learners, the material is generally not repeated, and it often gives students a chance to put together a more impressive high school record.
Some athletes do this for the obvious advantages.
If you’re feeling like this is a path for you, you are not alone.
I