We are choosing our child's opportunity costs for her, basically.
So sure, she COULD go to college at ten. (And really, ours could have-- at least at the local community college.)
OR... she could slog through high school (building similarity with nearly everyone else she'll encounter in college and after) at a pace that is tolerable (not ideal), and enter a higher-level collegiate environment when she is five years older.
Putting her in college as soon as she is academically ready was never a goal in our minds.
We certainly didn't set out to GROOM her for that outcome. My goodness. I think this is a terrible reason for homeschooling, myself (and yes, I've seen a tiny handful of people who do precisely that in order to place 16yo in community colleges or regional public colleges).
It's one thing if it is child-led. It's quite another if it is push-parenting.