Most of the rules enforced by pedants are pointless or outdated. But here are a few that may be useful

'The fashionable claim that “God loves all her children” is simply ridiculous. Accepting there is one, God doesn’t have genitals'

‘We used to point to the fact that teachers didn’t know grammar. Now the inspectors judging the teachers don’t know it either’

The teaching of grammar should be at the heart of the school syllabus. Without it we are killing intellectual curiosity