Bath time on the streets of Nanjing

We were wandering home from the performance at Bailuzhou Park and came across a family having heaps of fun on the footpath near the bus stop. Mum and Dad were giving the children a bath in a large plastic wash basin. The older of the children did not like having water over her face and was screaming at top pitch when we arrived, while the little one just puddled away in the water!

This looked like a nuclear family so I don't know how they fit in with the one child  policy but I may be making assumptions and they were neighbours or cousins - or something else altogether!