My first SWE job out of college in 2019 they were still using SVN because none of the seniors could be bothered to learn how to use git.

The “well this is how we’ve always done it” attitude had a death grip on that place

I have had too many times where I have been confused trying to figure out a giant nested loop because the writer used i/j/k or x/y/z. It’s even worse when they confused when a particular bug is because they confused what their single letter variables were and used j somewhere instead of i and no one caught it because it is so easy to brush over. Name your stuff what it is, make your life easier, make others lives easier.