Checkout this thread for who those people are: https://news.ycombinator.com/item?id=44258139
Quoting: "Perhaps even more striking is how people answered a question about whether they would be willing to pay more for a Waymo. Nearly 40% said they’d pay “the same or less.” But 16.3% said they’d pay less than $5 more per ride. Another 10.1% said they’d pay up to $5 more per ride. And 16.3% said they’d pay up to $10 more per ride."
There are going to be lots of causal factors: number of rider(s), time of day, safety, gender, wait time, price estimate, predictable arrival. Let's see an apples-to-apples comparison/regression breaking out each.