I have two Android phones (ICS and Jelly Bean) and this has not been my experience at all.
The first time you start the Google+ app, it will ask you if you want to enable Instant Upload (which uploads to a private album from which you can publish). Prior to that it doesn't do anything with your photos.
The first time you start the Google+ app, it will ask you if you want to enable Instant Upload (which uploads to a private album from which you can publish). Prior to that it doesn't do anything with your photos.