Wayne and Coleen Rooney’s son Cass, 8, lands first modelling gig as he follows mum into fashion world

WAYNE and Coleen Rooney’s youngest son emerges from the dressing room to kick off his modelling career — aged eight.  Cass Rooney made his debut alongside his mum to show off her latest collection of clothes for retailer Primark.  Coleen, 40, who has four sons with football pundit Wayne, said: “Having Cass as part of the kids­wear…