This sounds like some weird thing you'd get in japan - but not, here it is in the Dundee shopping centre.
It got restocked in between me finding it existing and going back to take a photo in case I'd imagined it - so it must get used. Thinking back to when we lived in Liverpool actually finding vegetables, not pre packaged vegetables ready prepared was really hard - because all you had were metro versions of supermarkets, not big things. Since we didn't have a car for a lot of it getting out to big supermarkets - or bringing home big bags of veg was a nightmare - it's why we eventually opted for the beetroot heavy local veg delivery scheme. So this really is genius, I've just never seen it before, ever.