Based on how I grew up, there was simply no replacement for parents involvement in their kid’s education. There were a bunch of classmates who had wealthy parents that sent them to the best schools (private) and did all the enrichment in the world. While it helped, it didn’t compare to kids who had parents involved and helping them along the way (especially early on).
“Outsourcing” one kid’s education/learning in the early ages isn’t just as effective, regardless of what quality “outsourcer” one will find.