I won't correct people on their mistakes, but I notice them and they irritate me. It puzzles me when I read people's work and they make basic errors. I got the same education as people at my school, but so many of them are just plain lazy. It's not like you have to be clever to use proper English.
It's understandable when the mistakes are made by people who know English as a second language, but if you know English as your first language then there is no excuse.
It's understandable when the mistakes are made by people who know English as a second language, but if you know English as your first language then there is no excuse.