Assume that you only have the resources and money that you’ve acquired up to this point in your life, and you still have to pay rent, bills etc. You are basically physically capable of everyday activities but extreme feats (eg running marathons, climbing everest) are not realistic.
If it’s just 6 months there’s no compelling reason to skip it, unless it would be painful to wait.
But if you meant why wait instead of doing anything else, that’s because I don’t have a family or friends to spend my remaining time with, so there isn’t anything worth doing other than just resting while waiting.