of course it looks grueling yet I make the same face stretching so I dont think its because they are children lol
I've always admired the Shaolin kids, and really their wisdom, adaptability, courage and endurance.
Having a 3 year old and a 5 year old myself, and watching them try training and how fast they learn, things they find difficult, or easy,
it makes me respect the "baby monks" and their teachers tremendously!

Amituofo!