I've been living "tiny" for the past 4+ years. Not by choice, but necessity. I had to move back in with my parents due to a slew of bad luck, and not being able to handle living in the house with them (I love them but they are the worst roommates I've ever had!).
There happened to be an old shack on the property that was overlooked, neglected and derelict. One day I had the bright idea of renovating it to get out of their hair... It only cost me a couple grand and I had a fresh space with nobody on the other side of the wall... Well, except the chickens, and the ducks, and the owls, and the race cars....................
Since I had limited skills, and because of space limitations, I was only able to plumb in some running water for a sink (cold only) and decided it would be fine to just use the restroom in the main house for showering and the toilet. I know some other tiny home situations are like this and all I have to say is that it's probably for the best that you have a bathroom, however small, in your tiny house.
The other main issue I have had in here is lack of storage. For some reason, people (particularly family) seem to want to dump their stuff on me. So despite there being ample storage in here at first, the stuff soon became too much and that is a daily juggle as well as I get rid of things...
But I am in the middle of a move as well to get out of here because I've learned that while the idea of living in a "tiny house" is fun, it's not for me. Would I do it again in the future? From the experience I have had and knowing what to look for, I would say yes. But only if it was completely necessary, or for a shorter amount of time as I have been out here for.
RE: Tiny Houses and Apartments Gaining Popularity Amongst Younger Generations