Of course you write with pencils. B, HB, F and H are good for writing. You don’t wnat to sharpen the pencil too often? Use a mechanical pencil. Some are great! I even started a thread a long time ago on things close to perfection and a Japanese mechanical pencil was sugested (not by me, it ocurred to me too late). Some are even better that the one mentioned:
An advanced ratchet type has a mechanism that rotates the pencil lead 9 degrees counter-clockwise every time the lead is pressed on to the paper (which counts as one stroke), to distribute wear evenly. This auto-rotation mechanism keeps the lead 50% narrower than in the common propelling mechanical pencils, resulting in uniform thickness of the lines written onto the paper.
And you can have colored mines! You can collect pencils! You can have water soluble mines that turn into water colors when worked over with a brush!
And you ask why? Because it is fun. And reliable. Simple and efective. Elegant and sturdy. Good pencils are close to perfection.