Interesting hypothesis. I went down the rabbit hole on it but couldn’t find supporting evidence (not to discredit your anecdotal experience of course). Seems if anything slightly the opposite on average. See for example “Sexual dimorphism in body size occurs when … living standards are high, and health correlate positively with male/female height ratio” here: https://pubmed.ncbi.nlm.nih.gov/32793524/

It’s mad given that Scotland technically is quite pro-renter. You just can’t enforce anything so landlords have learned not to give a fuck. A friend viewed a tennament they were trying to let with no kitchen (as in no cooker fridge or sink). Like something out of trainspotting.