In a prologue to his live performance of Open Your Eyes, Keith Green once said "this generation of Christians is responsible for this generation of souls."
I would add that we are responsible for the next generation, too. Not just our future kids, but all kids we eventually meet. Any contact impacts everyone in some way or another, but most influentially on those our own age & younger. So, if we see problems in the next 20-30 years, we'll know exactly who to blame. That's just what I've been thinking about lately.