U.S. consumer goods group Procter & Gamble is ready to bid for hair care firm Wella, but is still struggling to convince the firm’s family owners to sell, a source close to the situation said on Monday, according to Reuters.“An offer could come this week, the week after,” the source said. “But they (Wella’s owners) are still deciding whether they really want to sell the company or not. It is possible they could change their minds very quickly. Ultimately, there...