17/18 is somewhat becoming the new starting age for "adult"
already, since more and more (right now is majority, since most O
level students proceed onto Polytechnic after secondary school)
students are pursuing diploma at Polytechnic and they have to pay
adult fare.
This month never buy concession because I thought I don't have
to travel so much, since it's the semester holidays. In the end, my
ezlink card value drop so fast. 
Probably going to hang out in Jurong West area for the remainder
of the semester holidays. 