She just assumes that if something is broken, the first step is to see if it can be fixed.
The fact that this isn't the norm in society anymore is what baffles me. It's a great mindset to have, and personally I had to rewire myself to think like this as well. The feeling of reviving a dead or dying piece of tech is so much more satisfying than buying a replacement. Not to mention the money saved (usually).
I soak up trivia, and information about things like a sponge. I work with meds, and I can tell you at least one little piece of trivia about most of the thousands of pills that surround me. I can't let myself interact with an object, and not know what it is, or what it does. Every single songbird that I hear outside, I must know what it is. Every single flower on the ground? I need to know! We've spent an hour on a 10m stretch cataloguing, and identifying every single plant on there, just for fun.