What I’m saying is the people who used to have a big family and the respective housing have to be asked to downsize.
To where? Who pays the moving costs? What if there isn't suitable smaller accommodation nearby? What about support networks, healthcare or caring responsibilities? Should older people simply be expected to move regardless of the cost, inconvenience or suitability? Whilst some might hold out most people would downsize if practical solutions were available.
People who earn more should also be asked to leave.
Who is going to leave voluntarily? If they don't, how would you legally require them to leave?
People who have another property anywhere also should not be housed.
Do councils currently give social housing to people who already own another property? Surely that is already taken into account. y.
You say it's common sense, but there are practical questions behind each proposal.
I suppose it's easier to view everyone who needs social housing as human while treating everyone else, especially the elderly and the productive, as a problem to be solved by force. Lets just ignore practical constraints, rather that address them.🙄
It's actually far from commonsense.