Not really, actually.
BM soldiers are recruited and trained in the art of war (or at least their little part of it) and then paid cold hard gold to do it.
The more like high end Men At Arms than standard civilians drafted to fight. We lead the professionals into battle with us. Professionals who volunteered.
Yes, they can sometimes be drafted, but that is rare and causes MASSIVE realm control loss. Hence why it is so rare.
And mostly likely they're men who had to seek the profession out to provide for their families, hoping to find themselves recruited into a cushy militia unit, or left to hang out in a recruit depot unnoticed for all time. Professional armies in this time were mercenary companies, and definitely not a staple.... And definitely not recruited by mere Knights. Now, I think morale loss during battle should be related to training, as more highly trained soldiers are likely to be a bit more hardened to it, but it should never eliminate it.
