carg depending on your actual situation, the use of a car can be close to a necessity
How can something you never had before be considered a necessity?
Of course access to a car is a very tempting offer at that age. But there is nothing unfair about it, because by rejecting the offer everything would have been exactly as it was before.
The offer came without any pressure, as far as I got it. If I offer you 10, 000 US Dollar for whatever and tell you, you got 24h hours to accept or reject, that is clearly my right to do. If you are not happy with my condition until when you have to accept the offer, by all means, let it expire and just go on.