I was watching a true ghost story series once about Amish ghost legends--all of them logical to their respective communities--and I was horrified as I realized many ghosts were of children deemed "demon-possessed" and exiled to die of exposure (where of course their satanic souls continued to haunt said locations). And from the descriptions,all I them clearly had mental disabilities including some autism.

It doesn't matter if you believe in ghosts or not, the seed stories were upsetting and it was clear they didn't realize what they were describing was very clearly undiagnosed mental issue and not supernatural. They didn't even think to embellish with the supernatural until the part of the story where the kid was a ghost. They actually thought the pre-exile behaviors were proof enough of satanic influence to warrant what happened to them.

So its also possible that when a kid has such an issue and is unable to hide it, they are executed by exposure as demon seeds. No one out here in the "English" World would be the wiser. And before that series, I never would have considered the possibility.