Ping stops at an open doorway of an old house standing next to the road. The doorway has the typical red banners with Chinese 'good luck' writing on either side and above the door. We are welcomed into the home of Ping's 78-year-old grandmother. She smiles. Offers us the small Chinese oranges. I take a photo of Ping with Grandma. The inside of the home looks like an old barn – concrete floor, water puddles, a sleeping loft, old tools and family photos and pots and bowls and it's all very cold and dark and you wonder if any of our grandparents or parents could survive in a place like this. But the old woman has a big smile and seemed genuinely pleased to meet us.