The most efficient trip is the one not taken but what do we lose by not taking it? Is that cross town trip trivial, necessary, or serve a higher purpose? I do

The most efficient trip is the one not taken but what do we lose by not taking it? Is that cross town trip trivial, necessary, or serve a higher purpose? I don't think anyone would stop a human-rights march because of energy efficiency concerns. And who cares about energy efficiency when the energy is clean? It's well-known that the US is trending greener and this electric taxi is years away from widespread adoption.