Well..... my girls (at primary schools) were not with any academic classes outside school except CHINESE..
I teach my girls Eng at home. No need extra lesson outside. We like to spend time on music and sport instead. I believe.. as long as they are above average.. there is no need to be No. 1 in academic ... so they would have less pressure to enjoy their school life. More time to appreciate music and sport. My girls are active in speech too. As long as they are happy to explore more in speech, music and sport. But, one thing I like their schools are... they are good at reading.. I prefer more time to read story books instead...
You may be right as some friends' girls are in tuition centres most of the time. For me, I shall prefer my kids to pick up knowledge from school or story books instead..
I do not appreciate the culture the SPC/SPK of having a lot of extra classes after school hours. Despite you are not one of them, many do attend academic or non academic classesss.
At SPK, my girl was in PM SPK class. As far as I know, many of her classmates have many extra activities before school or after. You will not surprise to hear that.
My girl has some extra activities too. We have music and sport at least... so,.. you can imagine.
We did not go outside to learn English as I teach them myself. Except Chinese we have to take lesson outside.