Not much that you CAN do when they choose to leave things blank in protest.
One thing which has helped my daughter to play the game is to acknowledge that it is merely a GAME-- that is, when you're not learning anything either way, it's already intellectually dishonest on some level (for you personally), and therefore, it's okay to just jump through the hoop.
But as a parent, I also have to respect my daughter's decision to protest-- as long as she has thought through the consequences reasonably well, I mean, and has concluded that she's willing to pay them.
She's never been anyone's trained circus poodle, and sometimes she needs to flex that.
