Great, I was looking for an “in-between” home!
Actually, I know some couples living on boats with cabins about that size.
I lived on a house boat for a while.
It was cool, but if you have pets...not so much.
We have a 40 ft sailboat that I could definitely live on. Of course it looks to be about double the size of this little house. 2 sofas, a table, a full kitchen, a bathroom, and 2 beds (one a queen and one a 3/4 berth).
Plus I have a new philosophy. Everything we own is just stuff and can be replaced if need be.