Just curious, but are you on the spectrum? Or an ESL speaker?
Context makes it clear which claim they were asking for.
In any case, I'm not providing a source. This is a somewhat commonly known thing, and I was speaking from personal experience. If you're still really unsure where I grew up, you can probably figure it out from my other comments.
Feel free to search for whatever you find sufficient to corroborate my claims, or continue to be skeptical (as you should). I don't mind either way.
I still have no idea if you grew up among Aboriginals or Native Americans, or what makes you so confident about the other race/culture's beliefs.