Most of the houses we get called to in Wilmington went up somewhere between 1956 and 2008, with the median build year sitting around 1994. That matters because a door and opener installed when a house was built is now pushing twenty to thirty years of daily cycles. Torsion springs are rated for a set number of open-close cycles, not a set number of years, and a lot of the original springs on these houses are well past that count.
The other piece is climate. Wilmington sits in a mild band with some freeze risk, which sounds easy on hardware compared to a true northern winter, but it isn't. Steady humidity off the coast keeps moisture in the air almost year-round, and that moisture gets into spring coils, track bolts, and hinge pins even in an attached garage. Add the occasional hard freeze and you get metal that expands and contracts enough to work rust into places it couldn't otherwise reach. Across the roughly 22 named areas we work in, the bulk of the stock dates to the 1980s and 90s, so this isn't a one-house problem - it's a neighborhood-wide pattern of original hardware finally giving out at close to the same age.