Harry Potter actor Miriam Margolyes has told adult fans of the franchise to grow up, prompting a discussion about whether younger generations are delaying the responsibilities of adulthood.

It’s a debate that spans culture and economics, so we look at what the data and the history tell us. Is there evidence that the ‘kidult’ is a real phenomenon, where do our ideas of adulthood actually come from, and what on earth is a ‘Disney Adult’?

Presenter: Adam Fleming Producers: Simon Tulett, Simon Maybin, Nathan Gower Editor: Penny Murphy