Main Harry Potter child cast to be replaced after "The Prisoner of Azkaban"

The purpose of this petention is to vote to allow other actors a chance to portray the major characters in the Harry Potter series of films other than Daniel Radcliffe, Emma Watson, and Rupert Grint, Tom Felton et al. This petention is not intended to suggest the aforementioned are in any way incapable of portraying these characters, but merely to show it is unrealistic for them to continue beyond their current contracts (Harry Potter and The Philosopher's/Sorcerer's Stone-Harry Potter and The Prisoner of Azkaban), due to their natural growth the inability to maintain a filming schedule within these parameters to ensure accurate representation of the novels. Please sign this petition if you believe any of the aforementioned talent should not appear in the films beyon "The Prisoner of Azkaban".
This petetion is not intended to suggest the aforementioned should not continue careers in the film industry, but simply not in this series of films in order to preserve realism.
Signing this petetion indicates you believe it should be the actors' choice, and is a direct response to pressure that may be placed on them by other explicit calls for them to remain.
This petition will be indicative of public opinion and the results will be collated when filiming on "The Prisoner of Azkaban" ends and the choice of whether to continue is presented to the actors.
This petetion exists to balance a currently one-sided argument and add necessary contrast to an important issue for the aforementioned actors and the quality of the upcoming cinematic adaptations of the "Harry Potter" series.