No one in thiks thread has questioned as to whether or not it is proper to give prizes to children, in fact when one considers the fact that the Rambam felt it neccessary to write a detailed guide as to what are the proper prizes to give children it would seem to me that it is quite foolish for one to question whether or not it is proper to give children prizes.
What has been questioned it is proper to give children prizes and howe often et cetera.