In one of the oldest playgrounds in Sofia, where I grew up, there are some new toddler attractions among the old rusting ones, but the potholes in the tarmac haven’t been repaired. For the last six years, flowers have been appearing in them, as part of an ongoing project devised by the artist Veronika Tzekova. She calls it WUMAMPAROI (‘When you make a mistake put a rose on it’). We are a long way from the Soviet cult of childhood, in which the playground played a key role, shifting children’s emotional focus away from home and setting them on the road to the Party.