When should family car tires be replaced in terms of mileage?

[GriffinMarie]

Family car tires should generally be replaced after approximately 80,000 kilometers of driving. Replace tires when reaching wear limit: Tires need replacement when worn to the wear limit indicator. Along the sidewall and tread edges, there are small triangular patterns. Following any triangle pattern across the tread will reveal safety bars - small raised sections lower than normal tread depth. When tread wears down to these bars, the tires should be replaced. Replace tires based on aging condition: Check the tire's aging condition. While surface cracks may not affect normal use, tires with cracks deeper than 3 millimeters require replacement. Replace tires with tread deformation or bead damage: Tires with deformed treads or damaged beads, those that have been driven flat (causing sidewall damage), or those corroded by chemicals should not be used.