At the Café de la Banque in Marseille it had just gone 8pm and Manon Rouvillois was on to her third cigarette. Or fourth. “I don’t count them,” she laughed.

Rouvillois, 31, has been smoking since she was 14. “You smoke your first cigarettes because it’s cool,” she said. “From the age of 15 it was really regular.” Her parents were “very anti-smoking … but they quickly accepted it”.