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If there were safety advantages with cooperative driving and ultimately efficiencies I bet a public relations campaign could convince people. Or having dedicated lanes for cooperative driving. I would certainly turn this on for interstate driving.

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I think the PR campaign makes people aware there is a problem, but when people are intoxicated, the access to good [nondestructive] decision making is inhibited. I would wonder if ALL vehicles should have some sort of breathalyzer interlock that could also prevent junior from "fixing" mommys car so the little green light comes on again.

PR campaigns haven't convinced a lot of folks to buckle up or to not drive while intoxicated.

What's affected those is laws, vigorously enforced.

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