Do they see themselves working after retirement age? Work may have some entertainment value, but there are so many other options available for that in one's free time - and those options are unburdened by the unpleasant aspects that every job has.
I'm in my 30s and I've been really struggling to find something both enjoyable and meaningful besides work, and maybe gym.
> those options are unburdened by the unpleasant aspects that every job has.
Anything worth pursuing has some unpleasant aspects.