You're mistaking optimism for idiocy. Isn't that a pretty constrained way of thinking?

An idiot can give up too easily and turn out all serious, just like a smart person can realize it's not worth getting worked up over things that can't be dealt with immediately, so it's better to just try to stay light-hearted in the meantime.

[Gosh!!]

And what part of trying to be cheerful is disturbing, anyway?!