I am not particularly bothered about rent controls, I just picked them out as something on Corbyn’s manifesto that didn’t appeal to me (when asked to do so by Brogdale), because I think that the housing problem is essentially one of restricted supply in the places people want to live, and as soon as that is fixed, rent controls would be irrelevant. They might make sense in some areas as a time-limited scheme while the house building gets under way.
I have one house. Actually we do charge our youngest daughter rent now she’s earning, £300 monthly to cover bed and board, so I suppose you can count me as a rentier, although I suspect that the valuation board would say she’s getting a reasonable deal.