She’s a baby boomer – one of the lot that are using up all the resources. They’re the ones we’re going to have to keep alive and care for.

The great thing about the 7-up series of documentaries is that they have very little commentary. They depict people, their lives and what they find important and let the audience make their own decisions. 56-up went up earlier this year. Bruce was 7 when the series started. He went through private school and Oxford University. When he was seven, he wanted to be a missionary – reflecting his strong ethical and moral values. At 28 he was teaching in the east end. He believed that private schools perpetuated the class system. By 48, he was worn out by comprehensives and was back in the private sector.

In the end, what really matters to people is their families, their love for each other. Having looked carefully at the films, she thinks that the generation gap is a cosmetic blip from 16 to 22, and by your early 20s you’re back in the fold. You do some rebelling – but your moral and ethical values stay with you.

Back when they started 7 up, all their people walked into jobs. No longer. We shouldn’t worry about the generation gap, but about social class gaps. Think very hard about what we’re doing to today’s young people. Her kids stopped going on holiday with her at 15 – but by 22 they’re back. Their moral values don’t change, even if their behaviour and bodily functions do…

What’s important is what you do to the child between seven and ten. All the behaviour traits were there by 7 Up. Pre-school education is important for doing something about this class gap.