One thing I notice is quite a few qualification. Obviously, some of them are more-or-less essential if you want to do, e.g., scuba diving -- but for the others, how valuable have you found them?
I got certified for AutoCAD because I was bored doing programming all day, I could already do 3D modelling but couldn't prove it to anyone because it was just a hobby thing.
From that I got jobs doing CAD, first at an electrical place and then acoustic insulation.
I qualified as a welder because I was doing CAD of metal enclosures and wanted to understand welding enough to talk to our proper welders.
Then because I was doing CAD, I designed and built my own furniture - I had used the Ana White website as a place to find practice things to build in Autodesk Inventor during my certification [1]
I ride bicycles so wanted to be able to build my own wheels - so that was handy.
It really is just the choice between "I'll go home and watch tv until I go to bed" and "I'll go to my local technical college one night a week and do a course in something"
One thing I notice is quite a few qualification. Obviously, some of them are more-or-less essential if you want to do, e.g., scuba diving -- but for the others, how valuable have you found them?