The worst thing you can do is give a smartphone to a child. Like any technology, the computer can be a useful tool if used wisely. But the phone's addictive nature, and especially with social media, is absolutely deadly.
Give your child books, paints, crayons & pencils instead.
Hugh Grant: "It's been very, very depressing watching Big Tech kidnap their lives, and to see children really finding it very, very difficult to get properly interested in anything that isn't a screen."