Startup Idea : A Social Teach/Learn Community

Teaching and learning has evolved from the traditional institutions (schools, gyms and clubs) to purely digital learning experiences (udemy, udacity, skillshare etc). Both have its advantages and disadvantages. For traditional learning institutions the biggest advantage is you get high-touch experiences. Learning is faster and personal. The trainer is with you and they see your progress and struggles. However, these institutions are often capital intensive and so therefore the lessons are quite costly. Furthermore, teaching is limited to professional services - there are no opportunities for talented hobbyists who can also teach and probably charge at a lower cost. Online learning's big advantages are cost and ubiquity. Because these courses or lessons are done online cost is relatively cheaper and you can learn anywhere, anytime. The learning experience though is very low-touch. You can't ask questions, your teacher can't give you feedback/ tips. The learning curve is tough. Why not combine the best of both worlds? What if there's an online community/marketplace where talented people can connect with people online but teach/share their passion offline (high-touch).