I bought a new door for my house recently. When the salesman asked what type handle/knob I wanted, I had a bit of an internal crisis. The one he said post people got seemed like it would create a Norman door, which I desperately wanted to avoid. I ended up getting a standard knob to avoid being the absolute lunatic who spent 6 hours debating the merits of various door handles, but had I been alone, I would have absolutely done that. I still feel like I made a mistake every time I look at my door.

The book was a gift and a curse.

https://uxdesign.cc/intro-to-ux-the-norman-door-61f8120b6086

yeah, the book is something that people hate me having read. I know it wasn't my mistake and I tell them that.

as for door handles, most manufactures use interchangaple knobs so you can buy two and swap. You end up with a useless mechinism (i find you rarely can find a different door that needs the reverse handle)