Plants do not locomote because they are rooted in the ground and rely on other methods of survival and reproduction. They have evolved to be stationary and have developed structures such as roots, stems, and leaves that allow them to efficiently absorb nutrients, water, and sunlight from their environment. Additionally, plants have evolved mechanisms such as wind dispersal of seeds and pollen, as well as symbiotic relationships with animals for pollination and seed dispersal, to ensure their survival and reproduction without the need for locomotion.