Real Estate Agents and Builders to stop using the terms “master bedroom” and “master bathroom”

Ahem. Getting back to the topic of the thread, which has somehow turned into a ******* match, the term "master" is problematic in another way. It was the mistress who in many cases directed the household, of an aristocratic house: the servants and such--and thus a room in a house called "master" anything is not very accurate. Why not call it "Main Bedroom?" It could still be abbreviated as MBR.
It works, but I like the sound of primary bedroom better. I think for abbreviated purposes you could still use main bedroom and MBR, but still call it whatever you like.