My tank is right in the living room too. Some of them are more timid than others but I've found that my guys are very curious and like to be in the middle of the action most of the time.
Mine is also in the living room, but that's because it's the biggest room in our apartment. Mine would probably like being in the bedroom since we spend most of our time there (we don't have furniture in the living room yet, so no place to hang out!).
The most active room, whatever that is, is best for all social pets, in my opinion! Dog beds, cat trees, bird perches, lizard tanks, bunny cages, etc. You want it to be easy to interact with the pet or it might get forgotten in the busyness of life, particularly if kids will be the primary (with strong adult backup) caretakers.
Mine is in my family room but will soon be in my classroom and family room and he'll travel back and forth.
Great we have a 4 season sunroom that is like a second living room for is. Our computer is in there as well tv so we spend a lot of time in there as a family
I have a very curious kitten that my little guy doesn't like very much so I keep him in our bedroom and her in the living room. I have him out most of the day on my chest though to give him plenty of interation.
I keep mine in my bedroom where I spend 90% of my time outside of school. but I'm not very worried about her getting used to me because the rest of my family are interested in her but not all that up to social interactions. I do like the idea of keeping your beardie in the entertainment space such as a living room.