I haven't seen this type of thread..Unless am completly blind or something.
I feel the best time to break a horse is at age 4 at the youngest. 3 in my book is acceptible (eh) but not desirble. 2 is way to young in my own opionion. It's too stressfull mentally and physically to the horse.
And with draft horses since they mature slower am thinking 5 is about the right age.
Also am curious to know at what age your horses were broke at.
My horses were broke at age 4, 3 (possibly 2), and my mare I have no idea at what age she was.