Why apologize? This is where we discuss, analyze and weed out the truth from fiction. You put your hand up and Made the correction. OK, so let's put a strike through that one. that's good enough anon. We move on and keep digging.
The ones I knew usually had the grandparents living with the family, and the house would of been built or purchased by the grandparents back in the day and then gifted to the children when they got older and had their own family.