I don't know much about how Canadian welfare works, but from what I've seen in the USA, if someone gets SSI (disability checks) they have to let someone of a better mental state watch over their bank account to make sure they aren't using welfare money to buy useless shit/drugs, some states outright mandate that you use 40-50% of your monthly SSI checks for food and housing bills, and will get on your ass big time if you're caught abusing it for drug money and the like. Then again I'm from an area of the USA with some sanity left in its local government, so idfk how those leafs handle it, probably would call our welfare system "insert X phobic here" because you can't waste it on dumb shit without the feds getting on your ass.
Also with the USA. you have to report any income you make to Social Security for if you make over a certain amount monthly, they start taking away amounts of said welfare check, remember SSI is meant to help supplement a low income job. So knowing how much this leaf makes via twitch, they would 99% would be ineligible for American welfare due to income.