What makes you think that? Self driving cars have had untold billions of dollars in reaearch and decades in applied testing, iteration, active monitoring, etc and it still has a very long tail of unaddressed issues. They've been known to ignore police traffic redirections, they've run right through construction barriers, and recently they were burnt to a crisp in the LA riots, completely ignorant of the turmoil that was going on. A human driver is still far more adaptive and requires a lot less training than AI, and humans are ready to handle the infinitely long tail of exceptions to the otherwise algorithmic task of driving, which follows strict rules.
And when you talk about applying this same tech, so confidently, to domains far more nuanced and complex than driving, with even less training data than to go off, I find myself firmly in the skeptics camp, that holds you will struggle even harder to apply humanoid robotics in uncontrolled environments across a diverse range of tasks without human intervention or piloting or maintenence or management.
Unemployment is still near all time lows, this will persist for sometime as we have a structural demographic problem with massive amounts of retirees and less children to support the population "pyramid" (which is looking more like a tapering rectangle these days).
