The legislation comes with a healthy dose of lobby on the part of Google, but the idea of legalized self-driving cars is actually a good thing. Consider the amount of hours humans spend commuting. Now imagine how much better their lives would be if there was no stress from having to commute. If they could spend those two hours in their car either working or reading or doing anything productive?
Yes, this is an idealized situation where everyone relies on a self-driving car so that there are no accidents, but I for one, am not scared by the thought of this.