Would really suggest your parents enter no matter what. Your brother can come later.Hey sorry if u mind I was just joking. Initially i have tagged u and posted laughing emoji as well as I was joking but for some reason it got deleted.
I am hoping for the best I understand what the website says about copr after march 18 and that's why little worried but cbsa at the airport said same thing 4 different times that that's all for visitors we are welcoming new immigrants with thier dependants every day on terminal 3 no issue at all plus the tickets are booked so it's best to take a chance now. Hopefully they don't create an issue. If they do then will rebook his tickets