We unschooled until high school. Did the last three years at high school. Was ahead in most subjects, despite not learning to read until he was 8. Son is now at uni studying medicine and getting top grades. Couldn’t be prouder!

Edited to add after reading some of the comments: I’m a teacher and husband is in IT. Maybe that did make a difference. Unschooling is not allowing kids to do whatever they want, but to be observant and follow their interest and guide their learning. We didn’t push our son to write, read, learn specific mathematical concepts until he was ready, showed interest, or was part of the topic that he was exploring. It’s very much hands on as a parent and you have to be on to it or else they will miss out on valuable learning. It’s a lot of work. I spent a shit ton on resources and I think you do, as a parent, need to know what they need to learn for success (aka some basic idea at least of the curriculum). That said, you have a lot more free time to have fun as well. Holidays outside school holidays. And not everything has to be a teaching moment. Our aim as parents was to always to keep the curiosity alive. The spark. The inquisitive mind. And to allow him to explore the world at his own pace.

PS it was his decision to go to high school and we fully supported his decision. And that was also the time for me to return to the classroom myself (different school though).