A big share of the houses in this part of Central Florida went up between 1966 and 1999, with the median landing around 1986. That matters for openers specifically - a house built in the 1980s usually still has its original chain-drive unit, or a first replacement from the 1990s or early 2000s, and both of those are well past the point where parts are easy to find.
Across the service area's 84,289 households, with 44,232 of those owner-occupied, we see the same pattern from one neighborhood to the next: an opener that's thirty-plus years old, running on a motor and gearset that were never designed to last this long.
The mild, temperate climate here isn't the dramatic kind of wear you'd get from hard freezes or heavy snow load, so the housing doesn't fail from cracked seals the way it might further north. But decades of heat and humidity still get into the gearbox grease, the logic board, and the belt or chain over enough years, and that slow wear is what finally shows up as a opener that won't reverse, won't close, or just quits.