Someone I know pulled off some pretty big career changes: from a sound engineer working in windowless rooms, to a professional gardener, then to a software engineer. After several years working full time mainly outdoors as a gardener - including through the winters - they were looking forwards to working indoors again. And the pay was much better in software. So while some of us stuck in the office might gaze out the window on a sunny day and daydream about having a job out there in the fresh air, it can go the other way too.

There's several people here commenting that physical work can be refreshing and rewarding compared to office jobs, but often that's only in a part-time or volunteer capacity. I can attest to it being a nice change, but only ever as a part-time project. I would guess anything you do full time long-term will some time or another feel a bit of a grind. Manual work in particular can take a serious physical toll over the years, and being mostly sat down indoors for your job can end up being tempting too. I also know a couple of musicians who are perpetually on the road, and it's not always a glamorous globetrotting lifestyle - one said they mostly see highways and airports. But then there are great gigs too.

I think there's probably no such thing as a perfect job. That's not to say a change can't be refreshing or worthwhile though! Perhaps it's just that after many years most people eventually get a bit tired of whatever they're doing, and then the grass can look greener on the other side.