Bonjour Carl,
I fully agree with our steam colleagues, drain cocks are nice looking but not mandatory at all. On several of my 10V - D10, I have, others have not and for the one which have not, I gently help them at the begining of the steam opening to remove the condensed water.
Furthermore, opening the drain cocks in a hull is not obvious at all and generates dirt, little example here (test at about 15 PSI) :