Quitting WordPress is a lot like moving out of your parents’ house. It’s not something that you really feel comfortable with but you have to do it at some point in order to be taken seriously.
We're not saying WordPress is bad at everything and you should feel bad for using it. It’s not that. But its indisputable limitations directly affect the level of services you can provide as a freelance developer.
If they were satisfied in the first place, clients usually come back with more requests. Because their business is growing their needs also tend to do the same. So you install one plugin after another trying to keep up but, sooner rather than later, it becomes mission impossible and you have to vanish.
Here’s when some of those needs meeting WP spell disaster:
Of course, there are premium plugins ($$$) that can individually handle some of these things at some level. But managing a combination of needs and circumstances is where “the king of website platforms” is not the best choice.
Just as in your personal life, there are many milestones to go through in your professional one as well. This just may be the most important step you can take toward getting and retaining bigger clients.
Consider it tough love.