It really depends on why your son isn't doing well. If he is normally a good student but has been slacking off lately, then using negative consequences may be appropriate. His driving permit is a privilege, not his right. Even though it is an "illogical" consequence, it may just be "the right priced ticket" that motivates him to apply himself more seriously to his studies. (When we receive a fine for parking illegally, this is also an illogical consequence. But withdrawing our money - which is something we want to hold on to - can motivate us to park legally in the future). However, if this is a boy who has always been weak in school, always struggled and rarely succeeded, then I would definitely NOT withhold the opportunity to learn to drive. Everyone needs areas of success. Kids with learning issues should not be penalized - their deficits are generally inherited (i.e. your fault!). Allowing him to experience a feeling of competency is really important for his development, especially when you consider that poor students experience their incompetency every day, all day for approximately 15 important, developmental years. If he in fact has learning issues, then encourage him to explore other ways to achieve success (like an opportunity to earn money or shine in some non-academic endeavor).  School is only one part of the package - there are many ways to prepare a child for adult success. Sarah Chana