Julia Donaldson and Axel Scheffler’s much-loved children’s book Stick Man has been a popular family stage show for a while now and returns for Christmas with productions in London, Leeds and Coventry.

American kids are binge-watching so much of the British cartoon “Peppa Pig’’ that they are developing English accents and even using words like “telly” and “ready, steady, go.” The so-called Peppa ...