yeah, DST schedules change frequently enough that within the lifetime of most automobiles, at least some of them will be in use in some location where up-to-dat

yeah, DST schedules change frequently enough that within the lifetime of most automobiles, at least some of them will be in use in some location where up-to-date timezone database doesn't match the timezone database in the car's software. so the manufacturer gets to choose between making people apply DST changes manually twice a year, which most people understand and are used to doing for various things, or changing over for DST automatically but being wrong sometimes, which most people won't understand and will complain about.