As a child grows, so does their number of questions. 

No matter how much foolish or irritating their questions are, kindly respect them. 

If you know the answer, tell them.

If you don't, admit it. Say, "Son, I dont know the answer to your question. But I will surely tell you the answer after searching for it."

This will create the thought in them that, 'not everyone knows everything, there's no bad in asking questions.'

When your child grows up to an age, you must teach him/her finance.

He must know it. Give them some pocket money. They should buy anything they want, pen or box or pizza or fast food or anything with the money they have. No loans are allowed BTW.

You will be saving your money (indirectly) by doing so.

The parent asks that if we can afford something then why not give it to them. Sandeep answers, 'To break the chain of yeses'. 

If you give something in excess, its value decreases. So if a boy is filled up with toys, they won't be valuable to him.

And if you really give him everything he wants, he won't have the courage to listen a NO when he grows up. Hence, you must break the chain of yeses after some fixed period of time.

The love must be unconditional.

And please protect their privacy and don't have doubts on them.

NEVER UNDERESTIMATE THEM.

A child underestimated, is a child abased. A child abased, is a child chided.

Never have such doubts on them, that they can't even keep their personal diary. You mustn't look into them. 

You will be doing a great investment in their emotional bank account by doing so.