They do, but not so much about others. And even then if they ask I bet they are too busy envying you for not growing older to pay attention to your answer.

[Well, he doesn't understand why people want to live forever when he would be happy if he could die and stay dead.]

I get that, but humans don't have many ways to talk about people and things without labeling them. We put names to rivers and seas, that just shows how bad we have it.