https://www.bbc.co.uk/news/articles/c0rzvrjkklko
Tesco are trialling these giant scales to check trolley contents match what has been self-scanned. Surely this is going to be nothing more than a giant pain in the arse? They're never going to be sensitive enough to weigh small items, e.g. cosmetics, bar of chocolate etc. plus you might have your own shopping bags in the trolley to complicate matters.
This is not the way to go. Supermarkets need to increase the number of staffed checkouts.