I believe it's true simply because there probably are people that have had electric locks in their cars their whole lives and may never have had to use the "old fashioned" way of unlocking their car. Also, people are dumb.
Ah, if only she had been too dumb to use her phone and died of heat prostration in her car. How can you reach an age at which you can drive but haven't figured out a car door lock? That's why they invented child locks, EVEN A CHILD CAN DO IT.