Can I bear to sack the digital babysitter?

I was astonished to discover in conversation with another dad last week that he and his wife intended to introduce a screen ban over half term. Not limiting their children to something reasonable like two hours a day. But a blanket ban. How on earth will they cope — and by ‘they’ I mean him and his wife, not their two kids? It’s not as if they’re going on a family cycling holiday on the Dalmatian Coast.