@zens @liamvhogan oh god I hope you're wrong about that. I eat muesli with yoghurt at breakfast, I eat yoghurt with honey or marmalade stirred in for dessert, I marinate meats in yoghurt with spices mixed in. Doing any of those with sour cream would be disgusting. Is British yoghurt that bad?
I'd call American sour cream more of a somewhat lower quality creme fraiche. It's nothing like yoghurt.