Aah, Varun. A can opener for the worms I see... 8)
Alright then. The following is my own opinion, and in know way should be used instead of professional advice or your own gut.
Let me start by saying that my kids are only in nursery too, so I have the "luxury" if you like, of thinking about these options, without having to jump right in yet. I teach local kids so I have a wee bit of an insight into the local schooling system - I would not say that I am an expert by any means, but I guess it means I have formed a few opinions.
Okay so local kids do have atrocious English most of the time. True. They are also not fabulous when it comes to creativity and individual thought. Also true. However, I am stunned time and time again by the level of their general knowledge, their level of education in the basic areas: Maths, Science and English (see previous comment about spoken langauge aquisition) but their reading is very, very good. They often seem to have additional hobbies too, such as music or sports. Now I am by no means spouting the merits of tuition all day and night or rote-learning, but these kids do have a good healthy dose of self-discipline - something which, in my opinion, is very sorely lacking from many schools in Western countries these days.
I also hold the opinion that school will do the ground work and parents will help guide the final "tweaking" at primary school age. Plus I think that if the kids are around, dare I say it, proper English at home then perhaps some of the Singlish accent might be diminished. Also the local schools are usually only in for half a day - plenty of time for additional things like art, music or sports then if you want it.
I know the local system is far from perfect, but in terms of the basic ground-work for the first few years of schooling, I think it is a viable option.
As for the magic age for transfer into an
International School, I really don't know - perhaps before the PSLE!! Anyway, I definately don' t think that creativity will be totally quashed before the age of 12-13 (especially if mum and dad are being supportive in this area), but I do think that trying to install a serious sense of self-discipline towards your studies might be hard at this time. Now before someone gets angry about me "suggesting" that
International Schools are slack - I am not saying this at all. But there is no denying that the expectations are different. I have heard a few nasty stories about international schools here, and a healthy share of stories from local schools, too. I don't think either way is a sure thing, really.
On top of this, the international schools charge a bomb in fees and the kids are generally only there for a couple of years on average. Fact I recently learned: Last year, the very first student graduated from OFS that had started in primary school and gone right through. I think for young children it would be very upetting to have your friends moving away all the time (we plan to be here for a while).
Anyway, as I say it might not be perfect and I may change my mind as we draw closer, but this is my reasoning at this stage. Our kids are currently in a local pre-school and while I have not been overly happy with some aspects of it, I am absolutely sure that it is a far better option than what would be available to them if we were back in New Zealand (I guess that would help your decision too - what would your kids school be like at home...)
Mumbaigirl, you mentioned that you had thought about the same options - is there anything that you had thought about that is different to my ramble?