A 1974 median build year means most Norco garages were framed before insulated doors, torsion-spring safety cables, and photo-eye sensors were standard equipment. The original door on a house like that has usually been replaced once already, often with whatever matched the existing track and opening rather than what fits the house now.
Across the wider Corona service area, homes span 1938 to 2007 with a median around 1981 - a few years newer than Norco's own median, and mostly clustered in 1980s and 90s construction once you look past the older pockets. Norco sits on the older edge of that range, which means original rough openings that don't always match a modern door's stock width, and header framing that was never built to carry a heavier insulated panel without a look at the track and spring sizing first.
Our moderate-heat climate band doesn't put the same stress on doors that a harsh freeze-thaw region does, so the failures we see are mechanical and age-related - worn rollers, undersized springs for a heavier replacement panel - rather than weather damage.