> the correct grammar is what is used, not what’s ordained. There are no ordained rules but if that grammar and lexicon is confusing, as in the case of 'they'

> the correct grammar is what is used, not what’s ordained. There are no ordained rules but if that grammar and lexicon is confusing, as in the case of 'they' noted above, then it is de facto invalid. The purpose of language is to communicate in an unambiguous and expressive manner. Not to make shortcuts for the locutor.