I don't do homeschooling, but I have considered it.
DS, recently 7, started reception at 4 like most kids. He's still in reception. He will still be in reception in September too, so that will be his 4th year.
He has an EHCP, and has been told he needs a specialist school but 14 local specialist schools have said that they can't meet need and now they're consulting schools well put of borough despite DS having medical needs that restrict how far he can travel safely.
We've just had his mediation and been told he can't have his health needs documented in the legally enforceable sections because the medical professionals in charge of overseeing his health conditions haven't directly instructed the LA how long travel will impact him, because generally on their feedback reports they don't write how long distance travel will affect health for any child. They don't write their reports under the assumption that any children they see will need a specialist school, and there's a long wait list to see them again to ask for this help due to staff shortages.
This means in September my son will have seen 4 lots of "friends" excel past him. He isn't forming meaningful friendships or relationships and his mental health is significantly impacted.
He has learnt more at home than he has at school where he is expected to sit and learn, when he can't sit still or sustain his attention long enough. He has the capacity to learn, but not the right tools or resources. Unfortunately he is too overwhelmed and exhausted by the end of the day to be able to catch up to his age group peers at home.
With home educating you don't have to teach subjects to a mainstream curriculum. You can sign up for GCSEs if you want to and your child has that aptitude. You don't even have to wait until they're 15-16, but it isn't essential. It just has to be a full time education that meets the aptitude of that child. Full time doesn't mean a full 6 hours a day either, or even in one sitting.
If my child remains in mainstream, which he won't because we're awaiting tribunal, but hypothetically, he won't get any GCSEs, he will be bullied and won't have friends, and he may even start developing bad behaviours as a result of being left behind, not to mention his already impacted mental health at 7 will continue to get worse.
To me it's more of a safeguarding risk to leave him where he is.