OK, Still trying.
Thanks, Erel
I get the feeling I must start over.....
Edit: Nope, no need to start over. I found that the app content field (whether or not I'm trying to influence little kids, etc) was not filled in. As Erel was suggesting above I still didn't have a field completed in the console to activate the rollout (e.g. All applications>your application>Store presence>content rating). Yippee! I'm rolling out!
One major thing I learned here is that if one has inadvertently enrolled into the Google app bundle apparatus, she or he can back out of it and still successfully publicize one's app (in particular, their first app).
P.S. By the way, I also made (with my photoshop program) all the images of 4 or more different sizes that were called for, and uploaded them to the Google Play console; so that probably helped as well.