I get 70% as many readers to my blog from duckduckgo as bing (and 3x yahoo), so I imagine they are well positioned to get a boost from tech people recommending it to their families.
Right, those recommendations would've helped with Google's swift uptake. I remember advocating Google to everyone and they were hesitant to try but gave it ago because I was a considered a 'tech head' they trusted my recommendation.
If technology people start to prefer DuckDuckGo things may shift quickly.