Please consider registering
Interesting. I hadn’t thought about it before. Now, living by myself, I never go “over to” Safeway or “over to” downtown. It’s just “to”. But when I lived with family or friends, we would always go “over to” another house for a visit.
Seems to imply a transfer of hospitality and a transfer of control, not simply a move of one human body between locations.
Maybe it’s the same over as in “handing over” the merchandise, or “sending over” a diplomat or messenger. Upon entering the door, you have entered a different set of social rules.