Thats the strong ties the ircc is looking for. I am 32, married with 2 daughters and till now we live with my parents in the same building. My gradmother died last year, and she was living with us. No care facilities, every family cares its members. If my father told me to stop pursuing a canadian visa, I will stop right now.
The definition of family ties is very different, and IRCC officers need to accept it. PRs still go back and forth despite new lives in Canada because they have roots in their Home countries. Many has started to leave Canada, specially after getting a passport. Thats a strong tie.