Dear Abdulgafar,
no need to apologize at all, would love to answer your questions.
1. It took me around 45 minutes. Initially i thought it would take longer, but the border control was efficient and called in more staff to help out which sped up the process.
2. I saw many kids on board. I don't personally have any kids, but i can tell you that it was alright. The crew was extremely helpful and efficient. (The day i flew was the day many EK employees were laid off... i could sense a bit of sadness but they were absolutely brilliant as always on EK).
3. Nope, they didn't ask for ANYthing for me. which was strange. Just the address for my PR card.
4. Yes i did, i gave my relatives number and details. SIM card won't be available at the airport as most of it was closed (unless it opens up in the coming week... which does seem like the plan for some places in Canada).
Wish you the best, feel free to reach out anytime.