Some great points there folks.
Also gf has a 15yo girl and 21yo son who is at uni. I also have a 13yo girl that doesn’t live with us full time so there isn’t only the 3 of us needing looked after. We’ve looked into how much it would cost for him to rent or buy a 2 bed terrace and with everything included, no furniture tho, and it’s at least double what I am suggesting. Easily affordable for him, less than half his wages when he stops wasting it all like he does at the moment. We’re having a chat about it tonight together!