Some people take things like correct grammar and pronunciation very seriously as satirised by Mitchell & Webb in the video below. But as the video demonstrates, the finer details of our language can be quite complex and it’s a brave person who claims to not be guilty of a few mistakes themselves.
When it comes to effective communication, I think it’s okay to break a few rules (either accidentally or intentionally) to ensure we are understood. If we can string together a sentence that has a clear meaning, it’s not the end of the world if we use the odd redundant word, don’t pronounce our ‘h’ quite correctly (h-aich/aich), or use a bit of slang.
Having said all that, there is a line in the sand though and there are some basic things we should just get right. These often relate to spelling and/or using the correct words. One thing that is really bugging me lately is the constant use of the word ‘loose’ in place of the word ‘lose’ in writing. Is it not obvious that these are different words with different meanings? Come on.
So aim for clarity rather than immaculate grammar but at the same time don’t make yourself look like a “looser” by getting basic things wrong.