ㅈ is three strokes; not sure what you mean by personal handwriting aside, but the 'stroke' is a designation of hand movement, not a count of curves that makes up the character.
> I have never seen a native korean write ㅈ/ㅅ as displayed by most fonts, at least in non-formal settings.
Here's[0] someone's history of Korean typography which points out that the ㅅ may come from 훈민정음 Hunminjeongeum [1], which indeed has ㅅ .
Also perhaps you haven't seen middle school kids obsess over handwriting with multicolored pens ;)
Hmm? I don't think anyone considers ㅈ as three strokes, unless they're writing ㅈ like printed font. When handwritten, the whole フ-like shape is one stroke, and the small attachment is the second stroke.
> I have never seen a native korean write ㅈ/ㅅ as displayed by most fonts, at least in non-formal settings.
Here's[0] someone's history of Korean typography which points out that the ㅅ may come from 훈민정음 Hunminjeongeum [1], which indeed has ㅅ .
Also perhaps you haven't seen middle school kids obsess over handwriting with multicolored pens ;)
[0] https://m.blog.naver.com/PostView.nhn?blogId=designmage&logN...
[1]https://en.wikipedia.org/wiki/Hunminjeongeum_Haerye#/media/F...