I think most people are just used to Google, I used to be several years ago before moving to DDG.
Now I find Google is way too… “tutorially” and “bloggy” with results, and actually slows down my workflow a lot when I’m looking for a specific thing immediately - usually a bit of scrolling to get what I’m looking for.
DDG (for my use case as a casual search engine, and something to search docs for work) gets you to whatever you want with a much, much shorter and concise query, and pretty much always gets it right each time as the first result