Wise grandfather

Once there was a grandfather went to go to the city, when he arrived in town he also ride to motorcycle taxi drivers. Then the grandfather ordered the motorcycle taxi drivers to get to the destination.
Arriving at the destination the motorcycle taxi asked for the fare, but the grandfather did not want to give him.
Then the ojek driver asked "why do not you give me the money?"
The grandfather replied "I wanna just ride for what I pay"