Just yesterday I had an interesting discussion with my colleague who incidentally is from Taipei and a permanent resident here.
We were talking about Chingay and about students taking part in these events. The discussions later turned to NDP and why did schools participate in NDPs... I recalled that I had to participate in one NDP many many years ago... I have to say I didn't like it because we had to skip many lessons to perfect the moves and formation routines etc.. etc.. and also had to stand under the hot sun when rehearsing them. But being there at the National Stadium on National Day was fun.
One interesting question was raised by my colleagues, is the selection to participate randomly selected by MOE? I dunno... I started wonder too.