Sheesh. This was true of Google in the late 1990s when I was telling my coworkers to use it. If everyone listened to people like you then we'd be using Yahoo! and Altavista today.
DDG is better for some people. I use it and haven't missed Google yet. There are some things I need Google for (!m gives me a map for example) and some things I prefer Google for (I use G+), but for general search DDG is a better experience for me.
Really, why did anyone ever switch from Yahoo? It wasn't for the results, Google provided the search results for Yahoo for awhile. Many people, myself included, switched to Google for the clean interface.
Now I've switched to DDG not just for the results (which are 95% "just as good") but for the privacy, the variety (I like the idea of competing services), and some of the interesting things DDG is doing with providing information directly.
As I've said before, search is an intensely personal tool. Don't use a tool if you don't like it, but recognize that other people might like a tool even if you think it's terrible.