Being handy is attractive. Getting a nice unique present is cool. And blacksmiths / woodworkers are the ones that do that kind of stuff.
Yea, I would wonder why hobby engineering isn’t on the list, or something like ‘maker’ I think 3d printing as a stand alone is more of a support, it would be like, instead of woodworking, the hobby is ‘sawing’ it’s part of it, but engineering is what the hobby is actually.
I’m also willing to bet that the blacksmith they are picturing looks very different from your average blacksmith.
I only know one guy who is into blacksmithing and - being a nerd myself, I say this with kindness - but this dude is a super nerd. He’s also one of the scrawniest dudes I know. I’ve heard him tell women that he’s into blacksmithing before and it definitely does not have the desired effect that this chart would imply.
You always have to consider Rule #1 when taking these things into account.
To be fair my limited experience with blacksmithing has given me the distinct impression that I would have magnificent arms if I did it regularly
If you did it in the olde fashioneded way with a manual hammer, manually stoking the forge with a bellows, etc., then sure. But AFAIK modern blacksmithing is pretty similar to modern carpentry or welding or any other hobby where the machines do most of the work. It’s still a somewhat active hobby, compared to doing something with a computer. But, I don’t think a modern blacksmith is going to get huge arms from doing it.