Comment by zahlman

The UX is the point.

When you are "drawing text everywhere", you end up not having to draw all that much text. 3d models have more and more polygons as graphics cards improve, but the 80x24 standard persists for terminals (and UX is better for it). And I'm not even that convinced of "relatively expensive". Grokking UTF-8 and finding grapheme cluster boundaries has a lot of business logic, but it isn't really that hard. And unless you're dealing with Indic or Arabic scripts that defy a reasonable monospace presentation, you can just cache the composed glyphs.