Why do people use specific prices (like eggs) to judge inflation, and is that actually accurate?

I’ve noticed that when people talk about inflation, they often point to specific items—like eggs or gas—and use those as evidence that inflation is high.

But my understanding is that inflation is measured using broader indices like CPI, which reflect average price changes across many goods and services.

So I’m wondering: why do people rely so heavily on individual prices to judge inflation, and how accurate is that way of thinking? Is there any economic justification for using highly visible prices as a proxy, or is it mostly just perception?