[debono]

The father is still a PR?  The sons are Singaporeans.  Mother?  A Singaporean or Malaysian?

And why study in Malaysia?

Learning Malay instead of English is better?  SPM better than GCE O level?

The son is a Singapore citizen and is going to enlist in National Service.  Our education system is not inferior to that of Malaysia, where our students are educated in English as a first language.  Those who are educated in Malaysia, in Malay as a first language will find it hard to land a job in many countries.......