When I tried FC interiors on someone else's carrier (which had all services installed) I sat down at the bar (so far so good) and then wanted to interact with the bartender - not to order a drink, I'm not a crazy person, but to open up the menu - couldn't do it and had to get up first to do so.
Now, given that you can't do anything at all when sitting down, I have to assume that this was by design and not a bug. I wonder whether they ran out of budget here as well.
Thing is, many of the ideas being discussed aren't even all that revolutionary - a lot is just QoL stuff that people can already do in other games for years (like sitting down and talking to an NPC for example, or interacting with a screen that's on your desk/next to your seat). So I don't really get that defensive attitude of slapping down suggestions that wouldn't actually cost a lot in terms of asset creation or designing elaborate gameplay mechanics.
For sure, there are some small QoL features that could do with happening, and I'd love to see the barman made actually useful. But again, not the point being made.