Justification for a LARGE family

i am in favor of family planning. and i hate it when people just ignore the importance of planning ahead a family that you can afford to finance. the sad part is, most couples who belong to a very poor family are the ones enjoying bringing up lots of children in this world. they know at the first place that they can't afford to raise even one child and put him/her to school. but still, they kept on adding up in the population. and when time comes that they have nothing to eat, they point their fingers to the government and blame everything to the officials. i mean, we should be the ones responsible enough for our future and the future of our kids. the government is there to help but i hope that people will learn to help themselves, too. it's better to work hand in hand all the time.