Thanks for the info. I gained a lot.
However, I still have a question : We plan to land in Ottawa by March 1st 2019, my children's ages will be 12 (by Jan 22, 2019 birthday), 10 (Jan 28, 2019 birthday) and 7 ( by Feb 18, 2019 birthday). Will they be placed in 12-13, 10-11 and 7-8 age bracket...