Everyone focuses on driving which in the long run is probably going to go away as self-driving cars come onto the scene.

The best example I've seen of the gig economy is jobs that were already contract based but where it was hard to find and connect contractors with customers.

Walking dogs, small home renovation, etc. I've seen these apps make a massive positive change in the market where people are able to find more work than they code before (at roughly the same rate) and customers can find contractors willing to do the work and they are rated by past customers rather than just word of mouth.