A lot of it depends on how it has been originally wired. If the cables have been installed with care they’ll last a very long time.
As is often the case lash them in under carpets, bad bends, pulled tight, jammed into cracks/gaps bad clipping/stapling and they’ll not last long at all.
As is often the case lash them in under carpets, bad bends, pulled tight, jammed into cracks/gaps bad clipping/stapling and they’ll not last long at all.