what kind of lifestyle should be provided to children's for there better career?

The child's mind is still a lump of loose clay , waiting to be shaped into a good pot.
So some kids tend to have an overwhelming feeling of superiority complex in them.
Narcissism maybe a built in quality of a kid.
The way to prevent it is by making him a down to earth human. The kid is needed to be taught principles of humility. Being a humble human being should be a very important aspect for every person on this earth.  
They have to be taught storied with great Morales of humility and being a better human.
They should be taught all principles and morales of equality and equity.  They moment when they are taught that everyday and instilled in their minds only then will they learn to forget the superiority complex.

To give them a better career , we have to make them a motivating lifestyle. So that they stay focused in their respected careers.  

They need to be made to live an averagely strict lifestyle. 

A good lifestyle is defined by the amount of money we invest in ourselves. For having a good or lavish lifestyle, we need to have a large amount of money, but for having a prosperous career, we don’t need to invest a huge amount. The reason is that degrees don’t define and decide our career. What decides our career is how well you apply your knowledge (what you learned through the courses and their subjects) in your job or business.

Parents play a significant role in making the career of their children a success. Parents need to be supportive, provide them with the required money they need to support their studies, discuss things with them where they are perplexed. Parents should encourage their child in doing summer internships(not force them), must support their passion and give them the freedom to choose the best for them from a long list of careers.