The article has a narrow view of why folks buy more clothing - including things like weight gain/loss, growing (children), differences in body chemistry (blood thinners make you feel chilly, hormones hot), money available, new job, cheap clothing falling apart quickly, ill fit after washing, and so on.

Government regulation can help with some of this. Making sure consumers can afford better items, regulations on unused inventory, quality (though I don't know how you'd figure this out). You could encourage sewing and try to change people's minds about the sorts of clothes necessary.

But a lot of these are difficult to solve without rationing things out.