I think most often 'retiring' is not meant literally. In other words, one does not work at an ordinary job anymore, but they pursue other endeavors. They might

I think most often 'retiring' is not meant literally. In other words, one does not work at an ordinary job anymore, but they pursue other endeavors. They might even 'work' more after 'retiring'. It is true that FIRE does not buy happiness, but it is a nice tool if for example you like your hobby more than the current job.