So about jump.

[Mjollnir]

Or they can set invisible walls next to tents but then you can't really complain that jumping on tents is not realistic since now an invisible force is keeping you from jumping on it. I don't know about you, but I'll take jumping on the tent over invisible walls or unable to run the game at good FPS.

Agree with the OP.

Disagree that the invisible force is not realistic/believable. If there was an invisible force above a tent preventing me from jumping on it, I wouldn't consider that immersion-breaking, I'd consider that all characters automatically understood that would be a dumb thing to do in context, in exactly the same way we can't tear up grass with our bare hands, wield a chair in battle or ride on each others' shoulders.

Standing on a tent isn't relevant to a group of adventurers, so why is the option even there?