I used to follow FIRE-related communities.
There were a depressing number of people who would post something along the lines of “I just pulled the trigger! Now what am I supposed to do to fill the time?” Your take is spot on, and it’s incredibly sad the number of people we’ve created whose only source of meaning or joy in their life is their desk job.
As someone who pulled the trigger about a year ago, I feel like there’s not enough hours in the day to fill with personally enriching activities, both mentally and physically stimulating. And I feel increasingly lucky to have a life like that.
The largest FIRE sub on reddit is aptly named 'financial independence' because FI is much, much more important than RE.
The first post they link to on the sidebar is 'Build the life you want and save for it'
https://old.reddit.com/r/financialindependence/comments/58j8...
I honestly don't know how someone gets to the position of being able to retire without having thought long and hard about it. Even if you get an unexpected windfall, it's probably best to keep working until you know you're mentally prepared to retire.
I’ve noticed some people with seemingly fulfilling hobbies stop doing them after quitting their job as well. It’s entirely possible all those hobbies are valuable precisely as something powerful to latch onto and disconnect from the day job, and seem pointless the day after quitting. Seems like you had a strong sense of identity outside of your job already before quitting. Building that could be a lot of hard work for other people (and it sometimes comes as a surprise that it even needs to be built).
I think the FIRE crowd is even more likely to fall into this trap than the average wage slave. In addition to finding meaning in their day job, they're also more likely to forego short-term costs (like recreation/socialization/travel/whatever). Plus the FIRE planning itself becomes a hobby. So when they retire, they "lose" even more than the average person who might have more side interests.
Those people are wildly un-creative.
I don't understand why someone would FIRE and not already have spent years lining up all the things they will do. And the "won't you be so bored?" people. No, I'm not bored. You might be because you need someone else to tell you how to spend your hours.
Between learning new hobbies, tackling my backlog of projects in my old hobbies, taking care of my health, and spending quality time with my family, I still have more to do than I have time for. The awesome part though is that now I can do all the "must do" (family time, personal health) and "should do" (hobbies, socializing) things, and pick and choose between the "nice to do" things. When I was working, I struggled to even do the "must do" things.