Hello
@Rob101, as you may have noticed WordPress is -in general lines- easier to use than Joomla.
With WordPress, easy tasks are easy to undertake hence customers feel useful and pleased to do it themselves.
Joomla is more oriented to experienced webmasters, requiring management capabilities that may not be on par with the skills of the beginner who starts in web management.
Joomla was designed as a content management system from day one; WordPress, as a publishing platform that has evolved and has also become a content management system. There is a difference in them. Joomla was oriented to cover complex tasks from the beginning, however WordPress has been evolving constantly towards covering more complex needs over time. I guess there will be a convergence that makes them interchangeable in the end.
Today, the problem is to identify exactly what you want to do in your web. If the tasks will not be very complex, the best option is WordPress. Conversely, if your website needs to implement many advanced options, it is preferable to use Joomla, precisely because of the flexibility and power that characterizes it.
It is said that WordPress is the tool for 90% of webmasters; for the other 10% Joomla and other CMS will be fit. If in doubt, choose WordPress.