If he/she then returns, then these are the scenarios:
1. He/she returns with his/her family and are low, working, or middle-class individuals: Then they will need to have a job especially in expensive cities like Toronto and Vancouver; they won't come back if they didn't secure a job. This means they will pay income tax and tax on whatever savings they have. As taxpaying citizens they will be entitled to use OHIP, send their children to public schools (or borrow etc if they want to go private). This cannot be objectionable to anyone even some of the elements in this forum.
2. He/she returns with his/her family and are upper middle-class or upper class individuals: Then they are reasonably well-off that they won't leech off the system. Such people are more likely to send their children to private schools, to top universities rather than Canadian ones, and wouldn't need torontosm or the other person's money. Eventually, they will have to supplement their income either through starting their own business or finding a job.