some new taxi drivers in singapore 30+ years in sinagapore from birth also cannot say they familiar with singapore .
like my friend , born sembawang area , play at yishun , school at yishun all his life . cinema at yishun or woodlands . groceries all done at yishun , seldom got out of that area .
until work , find job at senoko .
when taxi course , failed 3 times . . .
if singaporeans famiar with all parts of sgp , gps salesman toh . o
so we cannot say in singapore very long , how long ? to know every part of singapore?