With so much note taking apps nowadays, I can’t understand why does anyone still write notes with pen and paper. You need to bring the notepad, book or that paper to retrieve that information, and most of the time you don’t have it in hand. While my phone almost always reachable and you carry when you go out. For those still like to do handwriting, there’s many app does that and they can even convert it to text notes.
So, if you still write notes with pen and paper, why?
Equations are a shitload faster to write: this is the main reason.
No fucking spell correction.
Every piece of writing is visually unique and looking back at handwritten notes brings back an additional layer of memory (diaries/personal journals eg).
Paper notes can be permanently destroyed with a high level of confidence and low cost if desired.
Written notes can be easily left for/handed to another person (for flirtatious purposes e.g.), or placed semi-permanently in a useful spot.
Electronic notes are great too, I keep my grocery list and whatnot on my phone, but the reasons above are why I also write things by hand.