I don't understand how people like this movie

Rating: 1/10 (13 April 2018)

First, why is the young kid left in the store and following the family home 30 ft behind everyone? Why if you can talk and live normal at the waterfall and lake are you inland at your house? You mean to tell me that the entire world is wiped out and nobody thought to themselves let's crank up the volume on radio waves? Dumb movie.