It seems that our Royal Family love having fun with our Playware, tap dancing, look for yourselves
When Margrethe II and Prince Henrik visited a sports- and cultural centre in Jutland 3 September 2012 Margrethe was not afraid to try out the tiles, when she had the chance, but Henrik dared not go into any competition with her, read more and see here why
Crown Prince Frederik visited Odense University Hospital and did exactly the same as his mother, trying out the tiles. And he is good at it too, as you can see from the picture.
The purpose of the tiles is for rehabilitation, and can you do that in a better way than through playing?