> Starting an investment program that won't pay off for decades doesn't make sense at my age, either.

I continue saving money because I want my kids to have opportunities that I didn't have, and avoid stresses that I did have. I will not live to see the consequences of my actions today, but they matter a whole lot to me.

Same with other decisions that will affect future generations beyond my family. I want, in some way, to leave this Earth in better shape than when I was born.

I'm not the only thing that matters.