In this world, I don't know if people have the incarnation of plants, or if plants have the incarnation of people.
It can be transformed into a human form or rooted in the soil. This completely depends on individual habits.
For example, in public areas, there are public seats and public soil areas. Of course, you can also choose to bring your own flower pots.
However, since maintaining the human form is a laborious matter, most "vegetative people" prefer to stay in the soil except for daily travel work and special events such as reproduction and childbirth.
Another key point is that once the flowerpot they are in is in a suspended state, they cannot transform into human form.
Concept: The human form has a way of living like a human form, and plants have a way of living like a plant.