So- your home schooled kids ended up where everyone else does. Was getting to enter the full time workforce a couple of years sooner better than having HS and college experiences one can not replace? It looks like your kids did not go any further educationally but entered the rat race sooner. Not a fan of homeschooling unless the student is highly gifted and needs can’t be met otherwise.
The final cautions of post #53 are important. The kid who will be doing the acceleration needs to want it, not to please parents but because s/he is excited to do it. It needs to be a natural result of the pace the child needs to avoid boredom while still getting a rounded (including socialization) education.