That doesnt really match my experience, every region has a distinct reason they don’t use turn signals; American drivers are too self-centered to signal, Indian drivers don’t use the turn signals because it broke 12 years and 800,000km ago, Vietnamese drivers/riders are too busy on their phones or stretching their legs to use a turn signal (vinfast drivers are just afraid it will drain the battery), South Korean drivers will have already made the turn or merge by the time the light reaches other drivers so they don’t bother.
That doesnt really match my experience, every region has a distinct reason they don’t use turn signals; American drivers are too self-centered to signal, Indian drivers don’t use the turn signals because it broke 12 years and 800,000km ago, Vietnamese drivers/riders are too busy on their phones or stretching their legs to use a turn signal (vinfast drivers are just afraid it will drain the battery), South Korean drivers will have already made the turn or merge by the time the light reaches other drivers so they don’t bother.