Yes, just to confirm, railway buffet cars have been putting your purchases in small paper carrier bags with handles for around 40 years now, so absolutely nothing to do with blame culture, compensation culture or any other culture. If you've ever tried getting from a Mk1 buffet car back to your seat in a Mk1/early Mk2 coach, you'd know the internal doors weren't powered. You always needed one hand to open them, some were so stiff you needed both. And the riding on a pre-upgrade WCML that had seven bells knocked out of the track by unmodified 86s meant that several hands would have been useful to keep yourself steady even if you had the luxury of Mk3 stock and a Mk3 buffet. Even today, when everything at least nominally has powered doors, it doesn't follow that they are all working properly, and the door open buttons aren't at a height which makes them easy to press while carrying a cup of hot liquid in each hand.