My Speed, Your Speed.

Today, I witnessed the slowest, oldest driver. Apparently he was a very old grandpa, driving a CRV on his own. I felt really sad to see how such an old man was allowed to drive all by himself without any company. Which also got me thinking: when we see a very slow driver, we often get upset and honk the car badly hoping that the driver will just go faster. But hey, we should always try to find out first why he's driving slow anyway. What if the driver was just not in the condition to drive faster?