Two things compound on houses this age: the building stock and the climate. This region sits in a severe cold climate band, and a door built or last serviced when the median local house went up - 1964 - was not engineered with today's cold-weather lubricant standards or insulated panel cores in mind. Steel contracts in the cold, and a track that was aligned in July can bind in January on a door frame that's shifted slightly over sixty years of freeze-thaw cycles.
The springs feel it too. Old-formula lubricant thickens in cold, torsion springs lose a little tension capacity, and a spring that was already marginal for the door's weight starts showing play at the bottom of the travel. It's a slow problem, which is exactly why maintenance catches it and emergency calls don't - by the time a spring fails outright, it's been telling you for months.
We're not going to claim every Elmhurst garage shows this pattern. Plenty of doors here have been replaced in the last decade and don't have any of it. But on the original 1960s stock that's never been fully replaced, it's the rule more than the exception.