If you don't have the money to buy LFS - and, $3000 or no $3000, if you're not allowed to spend it on what you want then it is not your money - the simple solution is to do extra work specifically with the intent of buying LFS.
Oh, and as far as trying to persuade your parents goes, referring to it as a game is probably not the best of ideas
I'm sure there a plenty of people around here, myself included, who would be prepared to tell your parents how much of a difference LFS has made to their real-world driving skill; and in a very measurable way too. How much of an effect it would have on someone who has not driven in real life before, I'm not certain, but I am certain that someone who has good experience of both real world driving and LFS driving will be the better for it.
Sam
Oh, and as far as trying to persuade your parents goes, referring to it as a game is probably not the best of ideas
I'm sure there a plenty of people around here, myself included, who would be prepared to tell your parents how much of a difference LFS has made to their real-world driving skill; and in a very measurable way too. How much of an effect it would have on someone who has not driven in real life before, I'm not certain, but I am certain that someone who has good experience of both real world driving and LFS driving will be the better for it.
Sam