Is it competent to choose Canon 600D for township children's photography?

To open a children's photography shop in villages and towns, 600D can be equipped with a standard lens 18-55, because this lens is enough to shoot wide-angle and focal length in cities. If the urban lighting is not good, you can match a flash, either original or domestic. Then I suggest you choose a fixed-focus lens, such as 50 1.4. This lens can shoot still things.