I mean, I, personally, also have some aspects of my life that I do not care for optimizing, even if the opportunity cost is significant. An example that should

I mean, I, personally, also have some aspects of my life that I do not care for optimizing, even if the opportunity cost is significant. An example that should be relatable to a lot of people here is learning emacs. People who get over the steep learning curve argue that it is the best thing ever and how much more productive they can be with it. Considering how much time I spend writing code (both at work and at home), that would definitely net me a benefit. But I just don't care to put in all the work required to get over the learning curve, simply because the way I write my code now is good/productive enough to not care for putting that much effort into optimizing it much further (if the cost of doing so is as high as getting over the learning curve of emacs). tl;dr: to answer your question in one sentence, people don't care for optimizing something if it takes some sort of a significant investment, as long as what they have now is "good enough".