Fallbrook's housing stock centers on 1980, a good four years earlier than the median across our wider service area. That earlier build date matters more than it sounds like it should. Doors and openers installed in the early-to-mid 1980s were built to a different spec than the double-car steel doors that started showing up on newer construction after 1990. If your house went up around 1980, there's a decent chance you're still running original hardware, or a replacement door hung on the original track and jamb, which were sized for a lighter, single-layer door.
With 9,978 households in this area and a median income of $87,293, this isn't a stretch of vacant land waiting to be built out. It's an established area where the garage door has usually had one owner and one opener its whole life. That's different from a newer subdivision where everything's still under the original installer's warranty.
The mild temperate climate here (per regional data) means the doors aren't fighting freeze-thaw cycles or heavy snow load, which is part of why 1980s hardware has lasted this long in the first place. The wear you get instead is slower and quieter: dried-out lubricant, hardened rollers, springs that have simply cycled past their rated life.