> the issue raises concerns about why there isn’t an easy way to open the car from the outside when its 12-volt battery — the one that powers things like its door locks and windows — loses power.
Its a design problem. Not sure whether its unique to Teslas, but it would seem to affect this particular model.
Regular cars have the same problem if you accidentally lock your keys in the car with the kid though.
Unless the kid press the 'lock doors button' by the driver seat.
There actually aren't! Modern cars are surprisingly good at avoiding this. You can't even lock the doors while they are open. The trunk is the only opportunity for that accident.