I'm a young developer who also happened to work in a bank so I did a lot of Cobol in 2017-2018.

Good points of Cobol:

- No boilerplate

- You could understand the use case just by reading the code

- Never seen such a fast processing of millions of records (this was done with VSAM files)

But the most important and a real eye-opener for me:

- Any developer can easily learn how to program in Cobol. You don't need superstars 10x programmers and ever changing frameworks and paradigms. There were grandmothers working as developers in the bank. I've actually never seen such a diversity in IT (not only age but also gender diversity). And you know what, that made it a real nice place to work