Things that wouldn't be possible in real life
Apart from all the obvious fantasy stuff....
Barging into a Jarl's bedroom while he's asleep and waking him up because you want to talk to him. I don't think the Queen would stand it!
Accidentally knocking everyone's stuff off tables, cupboards etc and them just turning a blind eye. Similarly just barging into people without them getting a bit annoyed.
Your horse surviving without food.... ever.
Not ever going to sleep without hallucinating after day 3.
Building a house alone in under a minute with no bricklaying/plastering/roofing skills whatsoever just because you have enough quarry stone, clay etc.
Paying off a cop with 10 bucks because you broke into someone's home.
Adopting a kid without going through a long, drawn-out process of paperwork and background checks.
Convincing someone to marry you just because you'd had a brawl with them. (well, I guess some might)
Jumping 40 foot off a cliff without your horse breaking it's legs.
When your adopted kids run up to greet you, they never ONCE ask if they can play a video game because they're bored playing tag and hide and seek
What else? (not talking fantasy obviously)