I believe most people are oblivious to how important oil is to their lives. Everything we do is dependent on oil. Some people don't even realize that without oil, they probably wouldn't even exist. The exponential increase in population over the last century was in large part due to oil. Some argue that without oil, we can't even sustain our current population (i.e. Michael Ruppert). If oil is the reason we even exist, then I suppose it would be absolutely essential for everyone to understand what peak oil is. If oil is the reason we exist, then without oil you might not even exist.
I think everyone should be informed on the importance of oil. Also everyone should be informed on the importance of oil depletion. As uncomfortable of a topic peak oil may be, it needs to be addressed because without knowledge about peak oil and its consequences, then your chances of survival in the near future are very slim. The whole planet is facing a life-or-death situation, and everyone needs to know this in order to survive or improve your chances of survival.
Before researching about peak oil, I had absolutely no idea how important oil is to our daily lives. I only realized how important oil is after realizing that I would probably be starving to death without oil lol. I only realized how important oil is after realizing that without oil, we might not even be able to feed the world's entire population, because our modern agriculture is totally and utterly dependent on oil.
But I'm glad that I realized how important oil is because without this realization, I would be unlikely to survive the upcoming catastrophe.