During my internship at a manufacturing company, I knew enough about VBA to record a macro in Excel (just record, no actual coding involved) to automate ~10 minutes of work I had to complete monthly and included step-by-step instructions for how to run the macro and what the macro did.
When I came back a year later after graduating, I learned the process was again being done manually because my replacement did not have even a basic understanding of how to interpret what a macro does from the script.
A few months ago, I automated ~6 hours of monthly Excel work through ~4 hours of trial and error of recording macros and manually editing them. I have zero training in coding other than osmosis from my brother who is an iOS programmer, but I wasn't afraid to screw up enough to figure it out.
Based on my first experience, unless my eventual replacement has at least a curiosity about how macros work I wouldn't trust them to effectively run my script over the long term--if anything breaks, they won't be able to fix it.
The point is, a lack of basic, basic understanding of coding could end up costing the company the 75+ hours/year I was able to save with a "buggy, dangerous...pile of garbage" when I either move to a new role or leave. This was something which would never have been a high enough priority for our coders to write for us. Multiply that through 25 people in our finance department, and you're talking about needing an additional full-time employee.
Can anyone recommend a good place to learn enough VBA to move past the buggy and dangerous stage?