Hmm, characters are square and have fixed width. The fonts are automatically fixed width when printed or even handwritten (well enough). With pinyin, you know,

Hmm, characters are square and have fixed width. The fonts are automatically fixed width when printed or even handwritten (well enough). With pinyin, you know, like any other phonetic languages, even Japanese, you can hardly match line width with syllables so perfectly. And that's why the Chinese classic poetry, in my biased opinion, is a level higher than, say, its English counterpart, as it requires more effort to not only rhyme the lines, but also match the length of each line.