As a CPA looking for an entry-level job as a software developer, it has been disheartening to see hiring managers brush aside my accounting knowledge and experience as next to worthless. I think the theory behind double-entry accounting is super interesting and a base-level knowledge would be helpful for many developers. Particularly those working at a small startup that have to wear the accounting/financial hat. The sooner you use double-entry accounting, the better your life will be in the future. Double-entry is an incredibly old system that's battle-tested, so it's remarkable to see some people still opposed to it today.

It's reassuring to see so many comments here expressing positive sentiment around the topic!