Haha. It's an opportunity, not a responsibility. At some point in your life you may feel more inclined to contribute in that way. Or you may not. Both are fine =).

Ultimately you shouldn't feel pressured by what other people ask of you. The choice of what to do and how to feel about it is always yours. When other people say it's your responsibility, like even if I had said that, that would just be me trying to convince you. That means nothing when you choose how to feel about it.