My 9-year-old son is studying in Canada, and my parents have been studying in Canada for less than 180 days. Will it be troublesome to go back to Canada for a few days? thank you

I wonder how many days my parents will stay in Canada. Generally speaking, if parents stay in Canada for a long time, such as more than three months, they should stay in China for three or four months after returning home, so there will be no problem when they return to Canada. Otherwise, parents will soon be considered to have the idea of staying in Canada for a long time. You will encounter some unnecessary troubles when entering Canada.