Would add to other posts that the son isn’t guaranteed admission to Canada as a visitor. What is the reason for his visit since he can’t study or work, how will he support himself, how long does he want to visit, etc. It seems as though you were both able to get approved for TRVs after being denied before the changes to the TRV screening process and you were able to obtain a WP likely at the land border even though so many who already are able to work are struggling to secure any job. The whole immigration system is such a disaster at the moment. The child may struggle to get a study permit because he will have stronger ties Canada versus to his home country. He will likely have a better chance of applying from his home country since he will need to show that he will return to his home country after his studies and studying Canada makes sense and will lead to better career options when the international student returns home. How much funds can he show since paying for at least 2 years of postsecondary education will require at minimum around 60k although it could be substantially more. He will also have to try to get attestation letter so another reason which may make getting a study permit harder than this man expected. What province and degree are they planning on applying for? They should apply as soon as possible if they want to attempt to gain admission for September. You may also struggle to qualify for PR if that is your goal because it has become extremely hard to secure PR unless you are work in certain fields. It used to be fairly easy which is no longer the case although it was always a struggle if over 40 years old.