I lived for a month in about 500 square feet with two other adults. We managed, but we also knew it was only for a short time. I know I could not manage life in a tiny home.
With 5 pets, a LA machine, there is no way I would want to live in such a small space.
My dream studio should I ever have the opportunity to build it, will be 16x24 or larger. With a covered deck running along one side.