This was common in Czech Republic, but the large stores switched back to weighting at the cashier checkout. I assume that the way how the consumer-facing scales are connected to the rest of the store's system has something to do with the stores wanting to eliminate it (different vendors and the backend interface typically involves shuffling CSV files around over FTP or SMB). Obviously, with the variations of borrow a scanner (Typically Zebra MC17/MC18/PS20)/scan by mobile application they had to reintroduce the scales back, so now they are somewhat stuck in supporting both of these processes. And well, I became so accustomed to scanning things myself as I put them into the cart that for me and large grocery purchases the only real alternative for that is not going to the store at all and ordering it online.