This is my view as well after reading through this whole thread. Tons of “I’m X culture and we do Y with our shoes” followed by a reply along the lines of “well I’m X culture too and in my experience we never do Y, we actually do Z.” It seems like it really just comes down to individual choice and how your family or close relatives did it when you grew up.

(FWIW: midwestern American, I take my shoes off at the door usually but have no problem walking through the house with them if I’m e.g. grabbing something I need or going from the back yard to the basement. We have three dogs who are much dirtier than my shoes are going to be.)