Some schools will require potential students to list their work experience and education so they can better provide them with classes that are varied. Paralegal schools will not reject applications if you do not have enough work experience or education requirements other than those listed above.
Some online paralegal schools will give students trial class options in which they are allowed to take the first course as a trial. By taking this course, you will get a fundamental understanding of what it means to be a paralegal and the type of work you will have to do in this field.