I use my daughters account quite often for filming and storage. I also often call her in to deliver an item like a Fortune pick when needed. I don't see why you would need alt in your name as it would be whitelisted as a junior/alt anyway.
Also running an Alt would just be bound by the same courtesys that we already adhere to in-game. So filming in the pvp zone, hunger games, landscape, is entirely fine and you are very welcome to explore any of my constructions (including my model of the USS Enterprise).
You already know the code of conduct so just follow that