Spinning up a messaging app without a compelling differentiation is hard. It's much easier with a compelling differentiation. Waymo could just set prices at half of Uber and boom instant market share.
Using Google's dominance to expand into other sectors (at a loss) is a perfect example of anticompetitive practices that regulators would likely take a keen interest in investigating.
Instant market share if they're willing to lose 2x the money that Uber is losing. It's not like drivers are going to be falling over themselves to sign up if it's a 50% paycut.
