As an example in my 110 year old San Francisco house, I recently attempted to do what I thought at first would be a very simple light fixture swap - but then it turned out the house was so old that 1. the wires were unlabeled, and 2. there was no ground, and 3. the wiring was so unconventionally done that I ended up having to grab a bunch of Klein Tools to diagnose things for hours to figure out how to actually safely replace the fixture.
Without LLMs, there's no chance I would have felt safe doing this myself - I'd never used a multimeter before and didn't even know about continuity testing, and when the continuity results from testing the fixture wires to the switch wiring yielded extremely aberrant results in that there was a 1:1 relationship in connectivity between each wire in the fixture to each wire in the switch vs a single expected hot connection and no neutral connection, I definitely would have given up without the LLM guiding me to attempting a hot to ground voltage check instead, which ultimately managed to work fine to get the fixture changed.
So all in all - LLMs have actually helped me feel more empowered to handle almost anything on my own vs historically feeling too far out of my domain in many fields to even attempt to try something on my own.