Is it possible to prevent users to modify printer options in CUPS?

A small family setup... I have a color printer, and a Linux computer, with CUPS installed. I wan to allow the kids to print, but only in draft mode, and only in greyscale. With CUPS I prevented the kids' account from accessing the printer. Then I set up a second printer, for the same hardware printer, but with different default options (draft and greyscale), and allowed the kids to access this new printer. It works, when they print the default options for this new printer are indeed draft and greyscale. But they are just that, default options. They can change it. Is there a way to prevent users from changing the options of a printer ?