I thank you for the question. It gives me a chance to explain--I had run out of time earlier--that there are actually two areas there.
One is the ban in the Immigration and Refugee Protection Act on sponsorship by anyone who has ever been on social assistance, even if that person is not currently on welfare. If the person had been on welfare ten years ago but they are now working and are able to sponsor, they are still not allowed to sponsor.
That concerns us--for obvious reasons--and I hope you will agree that it really doesn't make sense.