An excellent article from Wired on switching to DuckDuckGo from Google.
Once you realize most things you search for online are boring and obvious, you realize you don't really need Google in your life.
It’s super easy on iOS to change the default. Settings>Safari. It’s near the top.
I switched a couple years ago. I still have a Google account but have moved all my email to iCloud. Keeping the account for the moment because I’ve got a few shared movies on YouTube and for occasional need to access Google Drive.