I'm willing to bet that if you start a career in COBOL programming today, you will live a long and happy life as a COBOL programmer until your retirement age, earning more than your peers who chose NodeJS, Go, Rust, Kotlin, or whatever is modern today or tomorrow.

The only language that comes even remotely close is Java, in terms of job guarantee.

I doubt it's more stressful. Debuggers absolutely do exist, as do modern desktop editors with step by step debugging, but you will have to learn at least a little bit about memory management, SQL, and other "nasty relics".

It appears to be a part of the skillset that is no longer taught. I've worked in the embedded industry for a decade, and we usually had little more than trace lines over a serial cable to debug our code, and yet we somehow made it work.

I've long since realized that being a skilled programmer has very little to do with what language(s) you code in, and more about your understanding of the problem space. Yes, you can be a star in Advent of Code if you know every nook and cranny of your chosen (esoteric) programming language, but often people that understands the business side of things will fare much better.

And yes, I've also been young once, and I've programmed in just about every programming language that has been "modern" or "old" in the past 30-40 years (I've even written software in APL), and I've been good at it. I also absolutely despised the thought of programming in COBOL, but in the end, programming is about telling the computer what to do, and the what is the important part, not the how.