So you're saying Waymo can't scale because traffic in Lima is chaotic? That feels like saying cars won't scale because many rural villages don't have roads smooth enough for cars, and that horses can deal with that problem just fine.
I'm saying a Jaguar I-Pace with lidar that knows how to follow lines and a high-res map isn't suitable for a lot of the world's roads. And how it will "scale" to what a taxi can handle right now isn't at all obvious.
Plus drivers will learn the weaknesses of self-driving cars and then abuse those weaknesses.
Taxi drivers know not to stop in certain unsafe locations - good luck for self-driving cars to learn how to read for dangerous situations because of criminals.