utf-8 needs 24bit per glyph for the logographic unicode scripts, while utf-16 needs 16 bits. So if you're into selling silicon or don't care about these langua

utf-8 needs 24bit per glyph for the logographic unicode scripts, while utf-16 needs 16 bits. So if you're into selling silicon or don't care about these languages, or you only care about heavily mixed content (like html), then yes, utf-8 would be The Right Way (TM).