Many have pointed out that tiny houses aren’t for everyone: families with kids might come to mind, for example, though we have seen more than a few instances of average-sized families adjusting to the tiny life, whether on wheels or otherwise.
There’s also the possibility of just using two tiny houses together, as tiny house builder Viva Collectiv has done with The Ohana. It’s basically two tiny houses connected in the middle by an outdoor sun room and deck (and was featured on Tiny House Nation).
According to commenters over at Tiny House Talk, this compound of two tinys is home to a family with kids. The photos show that the parents’ bedroom, bathroom, and kitchen are all located in one tiny house. The narrow hallway leading to the bathroom makes it seem smaller. It might have been more sensible to move the kitchen and bathroom around so that the common areas can open onto the sheltered outside space.