I don't regret going to university in the slightest in regards to my job as a software developer. I don't regret the $30k it cost me. Some days I do question if I should've become an electrician instead, but that was never an option for me growing up, it was more or less expected that I went to university.
University was so much more than learning how to program a computer so that I could get a job, I knew how to that that before I started. Almost none of what I learned at university I've ended up using in my career. But it was good to scratch that intellectual itch, I enjoyed learning what I learned, which is why I chose software development as a career, even if it isn't knowledge I use in everyday life. It was also an opportunity for me to move to a new city and become an independent adult and grow as a person, while meeting and socialising with people I would've never met had I stayed in my home town or even moved to a different city to attend a coding bootcamp.
Why electrician? My father is a licensed (but not union) electrician and I used to work as his assistant when I was a teenager. The job was pretty boring, mostly driving to job sites, running cables, wiring them up, etc. It never struck me as an intellectually stimulating job. He had a book with a bunch of formulas in it (called Ugly's, iirc) that I would read while driving to sites sometimes, but it was plug-and-chug algebra.
I wouldn't want to be an on-call electrician, driving out and fixing ovens and light switches. Most of my tradie mates try to avoid those kinds of jobs too, ideally a job doing fit out on a large commercial worksite is what you want, office buildings and that kind of thing, even better if it's a union worksite.
I've always enjoyed construction work though (electrical and other), sure it's not intellectually stimulating, but it's rewarding. Sometimes I actually regret having such an intellectually demanding day job, after 8 hours of work often I'm too mentally drained to do what I want in the evening. There's also a certain sense of satisfaction from seeing your physical finished work that you just don't get as a software developer.
Working as an industrial electrician would be more my kind of thing, performing maintenance on machinery, programming PLCs, that kind of thing. Repairing equipment requires a lot of the same mental processes as debugging code, I enjoy doing both. It's a good cross between physical and mental work. The money is very reasonable, up to $50 an hour.
University was so much more than learning how to program a computer so that I could get a job, I knew how to that that before I started. Almost none of what I learned at university I've ended up using in my career. But it was good to scratch that intellectual itch, I enjoyed learning what I learned, which is why I chose software development as a career, even if it isn't knowledge I use in everyday life. It was also an opportunity for me to move to a new city and become an independent adult and grow as a person, while meeting and socialising with people I would've never met had I stayed in my home town or even moved to a different city to attend a coding bootcamp.