I watched that Woody Allen thing on Amazon, Crisis in Six Scenes. It wasn't very good, but my expectations had been lowered to the point that I was okay with it. Some of the jokes were really terrible and there was this anti-leftist thing.
Allen is 80. I imagine he probably has ten relatively good years left in him and at least five not so good years after that. His father was over 100 when he died and had a job as an office boy when he was 90. His mother lived to be almost 100. There are a handful of directors who kept working past 100. I don't know what that tells you about directing as a job, but Allen may turn out to be one of them.