The purpose of Unicode is to encode written text. There's an inherent level of complexity that comes with that, like the fact that not all languages obey the sa

The purpose of Unicode is to encode written text. There's an inherent level of complexity that comes with that, like the fact that not all languages obey the same rules as English. If you don't want to deal with text from other systems, don't accept anything except ASCII/the basic Latin block and be upfront about it.