I agree with what you are saying, my kids have zero common knowledge despite my efforts. However Hitler didn't build the wall! It was built by Khrushchev's communist Russia in 1961

The thing that bothered me the most was the fact that Meisner and Adaline had spent all that time together with her baby and there is no mention of Diane? I know she doesn't know Meisner has her but you'd think she'd say something like she's missing after Kelly died.