I can’t drop the 5 yr old off at the door to preschool, she might get kidnapped before she gets to classroom. I can’t leave the 7 month old in the car, he might get carjacked in the ten minutes it takes to escort the 5 yr old to her classroom. I can, however, take both children across an icy treacherous windswept parking lot in sub-zero temperatures risking frostbite, cracked skulls, and getting run over. People have no reasonable levels of threat assessment.