People generally login to their Android device with their Google account out of a perceived necessity, in order to 1) access the Google Play store to get apps t

People generally login to their Android device with their Google account out of a perceived necessity, in order to 1) access the Google Play store to get apps they're actually interested in, and 2) get their gmail to sync to their phone. There is a certain level of sending-data-to-google that is required to facilitate these functions. Android by default sends considerably more.