random anecdote from kindergarten
one time i was five (korean age) and i was in kindergarten. every time we had to line up and go somewhere everyone would walk facing forwards except for the teacher who walked backwards while looking at the kids. i thought that was cool and decided to copy the teacher and look backwards. the teacher told me it was unsafe since i couldn't see what's in front of me so i shouldn't do that, and i asked why she's doing it. she told me that adults have eyes on their back of their heads and they could see both sides. everyone was like 'oh ok cool' but i wanted to prove that.
so after a few hours, everyone forgot about the 'adults have more eyes' thing but i did not. so after i was done with my work (it was tracing the number 2 btw) i went up to the teacher and started rummaging through her hair to find her back eyes. she teacher looked back and asked me what i was doing. i said i was looking for her back eyes, and she told me i wouldn't be able to find it since it's invisible and works like a sensor. i asked her what a sensor was, and i don't remember her explanation but i believed it and went back to my seat.
now, i'm not an adult but i should physically be closer to an adult than that time, so i should be growing back eyes. but i'm not, so i guess the teacher was a liar. also it would be useful if i had them because my front ones are pretty bad.
and why did i not ask why she was causing confusion for the other kids who don't know the concept of back eyes by looking back, when she could have just looked front and made her back eyes do the job of monitoring the kids. past ava (canonically alice) was stupid, and she still is. :)