Basic stores CAN opt out.

I had to waste time reading what everyone said, ended up totally confused (I'm in a hurry just now), but clicked on Seller Dashboard > Subscriptions > Cancel Selling Manager. That took me back to the old format - easy WHEN YOU KNOW HOW.

I've never used Selling Manager and totally not interested in it or seller hub. All I want is to list and to sell. Not interested in stats - I tried that on the other E site and it was a complete waste of my time.