Update (February 2019): The methods below will help on older Android versions, but we've recently revisited this topic. So if you have a newer Android phone and you want to get rid of Google, head here. It seems like every week there is a new exposé revealing all of the backroom deals companies make to sell their customer's data to the highest bidder.
Jan 23, 2019 Sign in - Google Accounts Sign in - Google Accounts Google Account Your Google Account automatically protects your personal information and keeps it private and safe. Every account comes with powerful features like spam filters that block 99.9% of dangerous emails before they ever reach you, and personalized security notifications that alert you of suspicious activity and malicious websites.
Cannot get rid of "One Account. All of Google." popup
Jul 26, 2018 Create your Google Account A single username and password gets you into everything Google (Gmail, Chrome, YouTube, Google Maps). Set up your profile and preferences just the way you like. Switch between devices, and pick up wherever you left off.
Removing a Google account from your device can help accomplish this. But it's important to know what that means, and what the repercussions are, before going through with it.
Feb 16, 2019 How To Delete Your Google+ Account | Golden Frog