I've been struck recently by how properly diverse these programmes are.
Three judges - two female and one male. They're all quite opinionated, speak freely and each of their opinions seems to carry equal weight.
The contestants come from all walks of life. They're judged on their artwork, not their appearance. It's refreshing to see middle-aged or older women wearing practical clothes, short hair, and no make up. The artists are praised for being bold, for taking risks, trying new things, seeing the subjects in a new way. Also for their skill and sensitivity. I love that the focus is completely on the art.