In this time signature, there is only one strong beat, and it is on one. Think of a waltz. In the second row, replace the last quarter-note with a rest. In the third row, replace the last two quarters with rests. Now let's go back to Mary and her young mutton.
Music is the same way.
You don't want to end a phrase which is feminine by giving a good whack to an unaccented note. As it happens, gran-ny is a word with a feminine ending. Therefore, I call them grannies . Or, they may not be notated at all. Feminine endings are important because they give the music shape.