what does future perfect tense mean

I've stood a weight problem all my life. My parents bought me "huskies" while I would definitely grammar school. I wasn't an incredibly active kid. My parents always provided 3 good meals for me daily. School lunches were actually nutritious in those days. They weren't anything as if they are now with pizza, tacos, hamburgers, hot dogs, chips, sweet sodas and many types of kinds of chips and desserts. I hear chips are the main course especially with school girls. Today's kids don't have the opportunity. Statistically, it is estimated that greater than billion people are found below poverty line according to income standards and lack basic facilities to generate their lives valuable. In this way, people get alert to the truth that there are children living with restricted benefits and facilities cannot enjoy normal living standards. This is why a growing number of quantities of charitable and sponsorship agencies are increasingly being established. These corporations try hard to satisfy needs of the children but the high substantiate costs urge these to search for sponsors. This is the point where sponsorship agencies enter the scene.