On: I used to know how to write in Japanese

[BrtByte]

I've noticed the same thing (not with Japanese), but even after learning to write in Korean, my ability to handwrite faded way faster than my reading skills. I figured it was just laziness, but it makes sense that reading and writing use totally different parts of the brain.

[coffeeling → BrtByte]

How do you lose the ability to handwrite in Korean? That sounds weird to me.