Specifically, the EV should probably be a cargo bike. A bucket bike can replace something like 85% of car journeys (commutes, groceries, kids to school, etc) with way lower cost, upkeep cost, and emissions, and particulates than a car. Pretty much every family should have one (and rent a car for long distance stuff).
I find a trailer to be more convenient than a cargo bike. Most of the time I don’t need it at all and when I need more capacity than it offers I recht a cargo bike.