After getting married, you start thinking of earning more so that you can plan for your house, or kids’ education or retirement. On the way you also start family planning. As you become father/mother, you face more responsibilities. Now you have challenge to arrange for kid’s education. You will need good amount of money to enrol that kid into higher education as soon as the kid turns 18.  Very soon after that you will need another very big amount for his/her marriage.  
How good would you feel when you see your parents have planned for your education and marriage? Even if they have missed on planning for you, they manage our education and marriage by either borrowing money from friends or relatives or taking loans which turns out to be very expensive in terms of repaying.