I don't know if this is too vague or even if it is a philosophical question or not, but here goes.
I am fourteen. In my english class today, we had a discussion about one thing or another and the question was raised, "Do you fear 'getting old'?" A great majority of classmates said that they did.
I thought that it was going to happen anyway, so why fear it.
Is it irrational to fear aging?
A belief can be irrational, if you don't have a good reason for it. Can a fear be irrational? It seems so, if it based on an irrational belief. Thus to be afraid of ghosts is irrational. But I think you are asking whether it is irrational to fear something which, though based on a perfectly rational belief, is just something you can't do anything about. And here I am less sure that we should say that the fear is irrational. Impractical, perhaps, but irrational? Maybe it is helpful to compare this to something good that you can't do anything about. Suppose you know that, whatever you do, your parents are going to get you something you really want. Is it irrational to look forward to that? It seems not. But if it is not irrational to look forward to something good you can't do anything about, then why is it irrational to fear something bad that you can't do anything about? Maybe these two cases are importantly different. Looking forward to something is pleasant, so there is no...