Challenges of using Moodle include the need for technical knowledge to set up and manage the platform, a learning curve for new users to familiarize themselves with its features, and potential concerns about the interface's intuitiveness compared to other modern LMS platforms.
The first big issue is the fact that Moodle is not fully developed to cope with big projects. While it may be useful for colleges or universities of small to medium size, the system might not work efficiently with larger schools or serve as a great way to conduct all classes in a city.