What does this look like? Your child can separate without any major problems. Your child’s attention can be redirected and will focus on something else during the time that they are separated from you.
What can I do? If your child has always been at home, it would be a good idea to occasionally leave them with others while you go shopping, run errands, and such so that it won’t be traumatic for the child when it is time to separate from you at school. Have a discussion with your child about what to expect when you say goodbye to your child.