Because life is unfair...

While you are living in a beautiful and comfortalbe house , with well equipped kitchen,  children somewhere are still living in very poor conditions.
While you are going to school and can learn many interesting things, there are still children somewhere who have to work (low paid) to earn money for their family and can not go to school.
While you have nice toys to play with, kids somewhere on earth are playing only with leaves and pebbles.

Yes, because life is unfair...

There's still a huge gap between rich and poor in a country and between developed & developing contries.

And, what should we do to narrow the gap?.....