You mix all the styles together you end up with rubbish already
wah.
For example you teach bilingualism in school, you get
singlish.
Trained in mandarin school, get mandarin.
Trained in malay school, get malay.
Trained in tamil school, get tamil.
Trained in english school get english.
Trained in english, mandarin, tamil, malay school, you
get rubbish.
This is a wrong policy. It is not a correct policy.