> You can get jobs and have a career without education, certification and licensing?

Yes.

> Why is there any less?

Smaller company and down to earth attitude.

> I wonder what your experience is?

It's less safe than an office that's for sure. But the biggest accident in the company of 100 people has been due to arc flash and not due to walking across the shipyard. In general, the older colleagues seem physically as healthy if not healthier than average for their age; some having worked there for more than 20 years. I'm also surprised by this. The shipyard looks very dangerous but somehow not much happens to the electricians it seems from what I hear and see in the older colleagues.

Serious injuries which will nag for the rest of your life do happen, but they're extremely rare. All things being equal, physical work is vastly better for your body than sitting at a desk for 8 hours a day. Desk work is associated with increased chances of heart disease, obesity, mental health issues, and much more. We're not meant to be sedentary, but desk work basically requires that.

The confounding factor is lifestyle. Kicking back after a hard day of physical work with a huge meal and a few beers feels amazing, but that's going to wreck somebody's health if that turns into a lifestyle. And similarly, a gym rat who works a desk job is going to probably be in excellent shape.

I always wanted to help people and realized more and more that nobody ever needs a programmer apart from the medium to big corporations. I’d rather help individuals. That plays a big role.

Financially, it doesn’t matter that much. In the Netherlands salaries are much lower than compared to the US while taxation is very high. So I personally don’t care whether I get paid 5200 euro per month or 3200 per month since after correcting for taxes and government benefits the difference is a lot less. I also don’t need much anyway. I don’t mind living in a cheapish house with a cheap car and I also don’t like vacations (I don’t like change). Compared to programmer the salary isn’t that much lower anyway. I could go build my way through management positions in government or so for more bucks but then I would need to spend it on useless things to make me happy again so seems like a net loss too.

I am not this person but in some segments of the market there is significant demand for people who can build ships. The US and Canada are both about to throw dozens of billions of dollars at new domestic military shipbuilding programs, for instance. Somebody with his educational qualifications who can do something electrical in large/complex ships might be able to command quite a high salary.