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.
I’m sure you know other people spending thousands on their gear. Anyhow, many of these hobbies can be done relatively cheaply, but I imagine the woman picturing the man doing it as someone who wasn’t going the ultra-cheap route.
Nice picture btw. How far do you have to travel to get somewhere where there’s a low enough level of light pollution that you can take a picture like that?