Fullwidth Latin characters exist so that you can arrange your text into a grid without the occasional word in Latin script messing up your alignment. Most peop

Fullwidth Latin characters exist so that you can arrange your text into a grid without the occasional word in Latin script messing up your alignment. Most people don't really care about this, or, if they do, simply use a font that renders regular Latin at full width (or half width to be more space-efficient) but very occasionally the Fullwidth Latin codepoints get some use. It's more common in Japanese (though still rare) than Chinese in my experience, but e.g. the Project Gutenberg ebook of 阿Ｑ正傳 https://gutenberg.org/cache/epub/25332/pg25332-images.html https://gutenberg.org/cache/epub/25332/pg25332-images.html uses fullwidth Qs.