... and emoji, in particular, are actually very useful (and well-used) for average every-day communication amongst huge numbers of people. Obviously some are g

... and emoji, in particular, are actually very useful (and well-used) for average every-day communication amongst huge numbers of people. Obviously some are going to be more useful than others, but it would be quite difficult to find a subset of them that are obviously so completely useless that they should be dropped. The Unicode consortium's practice of just adopting complete scripts wholesale is vastly simpler and works out quite well in practice.