I believe that the best answer for this question is that it is unfair of parents to rely on their children to fulfill their dreams. Parents and children must be in a communicative relationship where the needs of both parties must be met and the wishes of both parties must be appreciated and respected, even if they cannot always be met. Hope this helps.
Methinks already from this chemic flame, I see a city of more precious mould: Rich as the town which gives the Indies name, With silver paved, and all divine with gold.