VACATION PHOTOS? 1920?

Here is one of two photos from my niece’s family’s photo album.  Most of the photos are dated 1905 to 1910, though some are dated as early as 1900.  From the style of the boy’s clothing, I would think this could have been taken later.  I assume this must have been taken somewhere in Utah.  The family lived in California.  The photo below appears also to be on a family vacation or trip.  Same three kids.  From the car on the left,  I would say these photos are probably closer to 1920.