I don't sell doors, I sell locks. And I've installed many of them. I know that inswing vs outswing doesn't matter on most interior doors, unless of course it has a mortise lock. Which is pretty common in high end homes.

So to be clear, you think all of these door handing charts are wrong?

https://www.google.com/search?q=door+handing&client=ms-android-verizon-us-rvc3&prmd=isvn&sxsrf=ALiCzsZKd3CkwtYO9AcXtICDmDPJ2pC1sA:1666943751931&source=lnms&tbm=isch&sa=X&ved=2ahUKEwj12saxuYL7AhVFMzQIHR6ACUIQ_AUoAXoECAIQAQ&biw=360&bih=652&dpr=3

As someone that sells door hardware, I'll tell you right now that we hate the "butt to butt" method mentioned here. This is NOT how hardware companies hand doors.

The way that hardware manufacturers hand doors is if you are standing outside of the room, what side are the hinges on? If they are on the left, it's a left handed door. Doing it this way correctly orientates levers to face the correct way. The "butt to butt" method will change the handing off the door simply based on which way the door swings.

My Hippo was a grey and white cat with that pattern, even the white stripe on the bridge of his nose. He was the bestest boy and always did a good job of taking care of me when I was having a really bad day.