My last job had us maintaining a system that used COBOL and JCL. That part was very fine. The COBOL was easy to read and understand.

The most annoying thing was the coin flip in the 70s that led them to choose a Network Database over a relational one.

Its essentially a giant linked list and there are a thousand reasons no one uses them today

I used to work with COBOL. The language isn’t terrible, it’s the 40+ years of no context changes that suck. It even works with SQL… although the most common configuration is using a flat file.