Those are rookie numbers. I have at least a 35k one somewhere. More than one actually.
People run their businesses on this.
I once landed a job at a small company doing a software for medical analysis labs all over the country. Software had been around for over ten years at this point.
They had no source control. Nothing.
Absolute nightmare.
They were literally starting to use source control when I arrived.
In 2015.
The “source control” when I first started was all the code on a shared drive, to check out a file you copied it to your machine, and renamed the extension on the shared drive to your initials.
When somebody edited without doing this there would be full blown meltdowns over lost work.