Hi There!
Thank you very much for your project shearing . i read the project requirement and understood the project concept, you want to get build up online school for 3-6 years age children. also you want to get the online payment system like Stripe and PayPal, Content management system (Courses, Modules, Lessons, Exams, etc.) the courses must be interactive games easy to understand for a child that only include audio and characters.
I have 10+ years of extensive working knowledge and experience in web development , i have excellent experience in html, css, ajax, jquery, php, codeigniter , laravel, My SQl. I can able to complete the project as per your expectation. please come on freelancer Pm , i want to discuss with you more details about your project. thanks!!