I don't have degrees hanging on the wall, I grew up in a body shop before digital graphics was a big thing. I learned to paint, hand letter, how to use pounce paper to letter corporate vehicles when I was a kid. My how the industry has changed in the last 60 years. I've been in the digital end of the graphic & design fields for over 25 years, from corporate stuff, to store and trade show displays, signs, vehicles, and still not any sort of "expert" in any way, on anything... I'm still learning. We make the equipment and software work for our needs, whatever brand, whatever technique is required, if anything is possible, we find a way, and learn from our mistakes.
Coming back into this after retiring six years ago, (last posts from my old account were in 2016) I didn't know if I still had wat it takes. I stepped into a part time, "help out in the graphics dept." gig, now I'm somehow the graphics department for a 50 year old sign company, and told I'm the best they ever had. I still think I'm a hack, all I really have is experience, and that's what matters. I've used most brands/ types of printers, plotters, laminators, materials... I've used pretty much every design software, a variety of RIP software, and while some do better at some things than others, no single one will fix a lack of experience. It just takes time and dedication. I still love this industry, every job is a new adventure, a new challenge, it never gets old. On thing I've learned is there is no one size fits all for anything in this industry.
One of the things I've never relied on is auto trace. It has it's place in some scenarios, but I look at it as a crutch in some ways. If you can't re-create something in vector, how can you create something that doesn't already exist for a client? The results can be awesome, but if you've ever had to edit an auto traced image to make it work, it's probably just as easy to draw it. Maybe I'm just too "old school", but I've drawn since I was old enough to hold a crayon, and adapted it to the vector world.