They issue is absolutely with tech. Cars can drive themselves right now in good conditions and with a human taking over ASAP in case it fails and even that isn't working 100%. Put that self driving car on a mountain road or in deep snow and see what happens.
Also, if your bar for accidents is "slightly better than a drunk driver and even less accountable", sure, then we can fully deploy that right now. Unfortunately this really isn't sufficient and car companies are fully aware. There's a reason Mercedes made headlines by taking responsibility for the car for ten seconds after disengaging the auto pilot and why they're the only ones who are doing this so far.
Also, if your bar for accidents is "slightly better than a drunk driver and even less accountable", sure, then we can fully deploy that right now. Unfortunately this really isn't sufficient and car companies are fully aware. There's a reason Mercedes made headlines by taking responsibility for the car for ten seconds after disengaging the auto pilot and why they're the only ones who are doing this so far.