To remain indifferent to the challenges we face is indefensible. If the goal is noble, whether or not it is realized within our lifetime is largely irrelevant. What we must do therefore is to strive and persevere and never give up.
Life seems to be a process of replacing one anxiety with another and substituting one desire for another--which is not to say that we should never strive to overcome any of our anxieties or fulfil any of our desires, but rather to suggest that we should perhaps build into our strivings an awareness of the way our goals promise us a respite and a resolution that they cannot, by definition, deliver.
I had something to do, which most kids really need. Something they can look forward to - a goal, a purpose to work towards. Something to achieve. Keeps them out of trouble.