Do I have enough time to trawl through a 'What if' list and still have time to fly?
A couple of days ago a pilot turned up to take a friend for his first trip in a light aircraft.
He asked me if I thought it was safe to go, as the TAF gave a Prob 30 of a crosswind close to the aircraft's 'demonstrated'.
I told him I'd landed the same aircraft several times at way over the 'demonstrated', with no problem.
He cancelled, and his friend went home disappointed. Glorious day too. He sat and watched someone else take advantage of the cancellation.
If you look hard enough, it's possible to find a reason not to fly. I suppose it depends on whether you see your glass as half full, or half empty. You can carry the old "If in doubt, Chicken out" too far.