Social attitudes to grammar change

https://www.theguardian.com/books/2016/apr/25/wait-is-that-a-rule-ten-everyday-grammar-mistakes-you-might-be-making

https://www.theguardian.com/commentisfree/2016/mar/29/grammar-pedant-personality-type

https://www.theguardian.com/world/2015/mar/05/ecuador-graffiti-accion-ortografica-quito-grammar