If anyone is really confused when someone says "Does everyone have their pen," or "Regardless of who was the first person to say a mask will prevent viral transmission, they're wrong", that's a shame.

The fact remains that 'singular they' has been accepted usage in English for over half a millennium, and it isn't going anywhere.

If anyone is really confused when someone says "Does everyone have their pen," or "Regardless of who was the first person to say a mask will prevent viral transmission, they're wrong", that's a shame.

The fact remains that 'singular they' has been accepted usage in English for over 600 years, and it isn't going anywhere.