It wasn’t sudden; it took 50 years. I know what you mean, though. My 50th high-school reunion is this summer, but I’m not going, because I don’t want to see how old everyone has become.
My 50th HS reunion was last fall. I went. It was a great time. Three days before Captain Kirk/william shatner went into space with Jeff Bezos. Great! Then someone mentioned that Shatner is 90 years old. 90 years old! Well everyone was 68 last year. What kind of body sustains those G’s to get into space?
So a couple of US vowed to stay in shape so that in 15-20 years or so when Musk’s space ships move from carrying 100 people to 1000 people and prices drop from 200k to to 5k or roughly cruise line prices —then we would be in shape to make the journey.
That is a proper goal for old age and bucket list topper for the new age.