The apprentice....
Non-union pipeline welders can make $300k if they're mobile with their own truck and welder. Just takes motivation to get to the jobs, show up sober, and be safe.
I know quite a few with paid off houses and retired by 50. They saved and invested themselves and were their own boss for 30 years.
One thing I've found with union anything. See if the pension is secured and fully funded. They're recruiting like crazy right now, as a lot of them have only partially funded pensions and they'll all go away if they don't keep the Ponzi scheme running.
It was comical watching the carpenters go from 20 to 25 to 30 years for a full pension over the course of 1 year. Guys with 18-19 years in were looking like they may kill anyone at any moment.