Hi, me and my spouse are considering moving out to Canada with his son who is 17 which would require me to go through the process of sponsoring them. What would happen if at a later date when my spouse's son is 19 years old or older, me and my spouse decide to move back to England? Would my spouse's child be allowed to stay in Canada as a permanent resident even though we would've moved back to England since he would be classed as an adult by Canada? All answers would be heavily appreciated. Thank you.