The government seems to be worried he will illegally stay past his visa, either due to his past history or because his country might impose restriction on him c

The government seems to be worried he will illegally stay past his visa, either due to his past history or because his country might impose restriction on him coming back due to Covid. This would be trivial to avoid with something simple like a safety deposit; You leave 10k and you get it back once you legally depart the country at the end of your visa. Overstay and lose it. Alternatively, the home country could underwrite it. This would remove any incentive they have for keeping a student from returning home. Even before the convenient excuse of Covid, it seems overstaying or illegally working on a student visa was quite common in Canada [0]. [0] https://thewalrus.ca/the-shadowy-business-of-international-education/ https://thewalrus.ca/the-shadowy-business-of-international-e...