Embarking on a long-term trip is both exciting and daunting. It takes a lot of planning ahead, calculating things like budgets and the money you have in various currencies, and pushing the boundaries of your suitcase (and own willpower), in order to have everything sorted for a year-long journey around the world.
I recognize it is far easier to be the one going than to be the one left behind. I sympathize with them. But I do not feel it fair to call my decision, or me by extension, selfish. On the contrary, I believe what I am doing is empowering those I know and am soon to know to go out and live their dreams.