Why do some Yaris sedans have a tach?

[big lo]

This all falls down to where a person lives, laws etc. It sucks, all cars should have a tach, one is more aware of the power in shifts etc, but thats the car business, you get it or you dont, its a scam, fraud, so we can pay more at least this is my opinion, I could be wrong thou. But the fact remains why oh why some models have this and that, all around it sucks.