We home educate in Italy where strict regulations, and yearly in person exams take place at the school. I can see endless opportunities to hide abuse, even under these supposedly strict conditions, not least because the schools are disorganized.
They have a culture of letting things slide, and making excuses because there are so many kids to cater for within the school, that reaching out to home Ed kids is way down on their priorities.
We actively try to engage with them, but it does seem a bit pointless. If I'm honest, I think they like the ego boost of a bit of authority, but as soon as it requires any action on their part it never materializes.
Our current example being that we had to pay a private school, to do the yearly exams forced upon us by the LEA, because the local school had completely failed, despite three reminders, to include our kid in the exam schedule.
We aren't ideological home schoolers, we did it because of language issues, but I can't help but describe the school/LEA as a shambles. My door is wide open for home visits and checks, but they wouldn't make any difference to anything.
I can't see how anyone can teach or learn in such a poorly organized mess, and the idea that they might spot anything in the community is a joke.