From the time of conception, growth is a choice for human beings.
Prior to our birth, our mothers made the choices about our growth.
Following our birth, any or all of our mothers, parents, family and other caregivers made, or otherwise influenced, the many decisions related to our personal growth.
Typically, as human beings develop and mature, we assume increasing more responsibility for making our own choices about personal growth.
Some of us choose, either intentionally or by default, to adopt and follow the growth model of our parents and family. Others choose to follow other growth models, while still others choose to live life on their own terms, growing and their lives however they see fit.
Unlike plants and animals, for most human beings personal growth, or lack thereof, is a personal choice, either by intention or default.