We used to "exchange holidays" with a couple in the UK.
Until about a decade ago there was both a drive-in theatre and a 50's car-hop hambuger joint near us. So we took out friends on a "Typical date for us way back when".
The fellow worked for Barclay's, and was fascinated as to why the drive-ins were disappearing. He offered the suggestions that perhaps real estate prices, etc..etc.etc.
I put a stop to the theorizing:
"The Invention of Panty Hose."