Change is difficult and we want things to change to the better, but are often not willing to change our own habits. This can be  for many reasons: financial, opinion, standpoints, laziness, lack of ability or any other excuse. 
But a good example of how change can work is through the movie, “Pay it forward,” where an unconventional teacher makes his?her? students do one good thing for someone else without expecting anything back for it. One very motivated student comes up with the idea that each person has to help three other people and that they then need to help 3 people, how then also each have to help 3 people and then in the end it adds up to many people. The first person to help someone was a student that took a homeless person into their house, to the disgrace of the his mother. But when she was tole about the project she was more supportive.
Link to trailer; http://www.youtube.com/watch?v=_pCtXRP1edo

I think this idea is a great way to create a better world and be happy just to help other people and not expect anything back. That is often the problem that people don’t mind helping others, but that they then expect something back, this can be personal gain, a favor back or even a financial reward. Then the pleasure of helping goes away as we always have another intention in our mind.

But how realistic is this idea? It is meant to be a chain and at one point without doubt there will be someone that is selfish and breaks the chain. I think that the only way we can really motivate people to make change is if they have a personal gain or if people start having pleasure in other people’s gain (which eventually could be their own gain).

You could say that change is almost as a circle that we (still) have to find a way to close, change will not happen from one day to another, but will take a long time to acheive.