Chain restaurants are the melting pots of society – here’s what we can learn from Wagamama and Zizzi

‘It’s no surprise to see people choosing these sorts of conveniently located restaurants: a Wagamama branch in central London. Photograph: Stephen Faulkner/Alamy

If you were choosing to eat at a restaurant based on social good, where would you choose? Would it be the zero-waste restaurant whose ingredients are only sourced within a 25-mile radius, or the one that offers job training to marginalised groups, such as refugees and ex-offenders, to become its chefs?

Or would it be Zizzi?