If I was an anthropologist who was into doing a lot of interesting surveys

a survey I would do would look like this:

a) are you freaked out by the idea of space?
b) if yes: well do you have a bossy older sibling then?
c) if no: good

this is a thing i have observed. There are some people I know who come over all woozy and funny when they think about space for any length of time. Not space like personal space. Real space.
The thing that they all have in common, these people, is that they each have a very chats and In Charge big sister (liam, mae, caitie, john). I wonder what is going on there? I wonder if all the big sisters told the little ones scary stories about space? I definitely didn't. I don't know any scary stories about space.
This is a thing I would like to find out more about.