First, congratulations on having an Eagle.... That's a HUGE accomplishment for a teenage boy!
I know exactly what you're saying, it becomes a mindset. I'm a former Scoutmaster and have two Eagle Scouts, so the "being ready" mindset is always there. My wife always says, "if she ever gets lost in the woods or gets caught in a natural disaster, she hopes one of our sons is with her, and she'll have no worries".
Two great books that help people wrap their heads around what will happen. Everyone has been too complacent about being able to flip a switch and power going on. Not having power for an extended time is a game changer for MANY.
I've been through multiple power outages over the years, but the biggest test was Hurricane Sandy. I was prepared, so it wasn't a big deal for us, but we went without power for like 8 days, it came back on for a few days or so, then we had the snow storm that knocked it back out for like another 4 days. Living through that helped me to refine my overall plan for the next one and longer one.
I've always believed there is only ONE person that will take care of me and my family, and I see that guy every morning when standing in front of the sink in the bathroom.