I've been thinking the same

I second this, with added detail: when ordering stood up, items should go into your inventory as normal (let's call it take-away). When seated, the waitress should bring the ordered goods to the table and set them down. You the player, consumes the items with button press triggering a drinking/eating animation. the number of presses/drinks/bites per item should vary depending on the item. So, for example for drinks, a shot of schnapps is down in one. A glass of wine, maybe three sips, a beer, five gulps. Something like that. Then you can have a proper night out in Kuttenberg!

It's possible. The animations exist from KCD - "In the Cloister" quest, Henry sitting and eating out of a bowl. I wonder if it's possible to import animations. WH seems to have recycled a lot of animations from KCD, into KCD2, so it should be doable.

The main issue would be writing and getting a script to fire that would have an NPC (alehouse maid) approach Henry when he sits down, open a dialogue menu, then have the NPC do the "fill bowl of soup" and bring it to Henry.

Unfortunately, I don't know how to edit scripts so it'll have to be a more talented modder.

This would be a nice touch. Henry should even be able to complain about the service like the other NPCs do as well! I feel like a lot of the dialog you need to listen to from NPCs that were sitting at a table with an open seat, could play out in a more natural way by sitting down and engaging in conversation in a totally natural way. Good call!