Minnesota's winters are the main driver here, and Columbia Heights doesn't get a mild version of them. Cold, severe winters stiffen steel torsion springs and thicken old grease on tracks and hinges, and a door built to mid-20th-century tolerances doesn't flex the way a newer one does when the temperature drops. On a house from around 1962, that's sixty-some winters of metal fatigue on original or once-replaced hardware. We also see galvanized rollers that were standard in that era wearing grooves into track rails that were never resurfaced. It's not that the neighborhood does anything differently - it's that the housing stock here is old enough that these failure modes have had decades to develop, and a maintenance visit that only checks lubrication misses them.