Why is Draco an only child

[B.G.]

No: HPFGUIDX 127018


In an interview JKR simply stated that "Draco is an only child, can 
you imagine more Dracos".  She also has expressed surprise that so 
many girls seem to like Draco.  She went on to say that she thinks 
they like Tom Felton who plays the part but that Draco is not TF.  
This leads me to believe that Draco will be one to perish and she is 
concerned that kids are getting attached to the character.  Or that 
they will continue to like him even as he becomes more evil.  His 
character is a bit of a wimp in the last film but I don't read him 
that way in the books.  He is following in his father's footsteps.

-B. G.