@BillywigStings
"I have been advised by other home ed families that it is much easier to never send them to school as local authorities often make it hard to withdraw your child later on. Even though the law says otherwise they try to impose restrictions on you and say you can’t withdraw without a good reason without inviting scrutiny and further interviews and implications of social workers being involved."
I really don't think that's the case, BillyWig, and I've been involved with home ed support for a long time. First, unless your child is at a special school, the LA simply cannot make it hard for you to withdraw. You just deregister and that's that. Honestly, I meet with many home ed parents irl and online and while some LAs are awkward, they can't just stop you deregistering. Nowadays, the LA almost always gets notified even if your child never goes to school, because there is a lot of follow-up to see where they're going after nursery. They would then make contact in the same way, and would ask for an outline of your home education provision, regardless of whether your child has been to school or not. It used to be different - I home educated my oldest from birth right throgh to 16 and the LA never got in touch, because if your child didn't go to school in the first place, you often would simply not appear on their radar. But for most of the new home educators with very young kids who I meet at groups now, the LA gets in touch regardless of whether their child has ever been to school or not.
One reason the LA will be quick off the mark to get in touch if you withdraw from school is to check whether you actually wanted to home educate your child, or if the school is off-rolling, ie persuading parents to withdraw a pupil who they see as a problem. They often also want to check that you understand you're taking on full responsibility for education, as some parents may think that they will get LA home tuition, whereas that's normally only arranged if you're still enrolled at a school.