If you are thinking about starting a blog on WordPress, the answer is yes, it does cost money to start a blog on WordPress. WordPress is a free and open source content management system (CMS), but it does require some setup time and financial investment to get started. One of the best ways to get started is to use a hosting service like WP Engine or SiteGround. These services offer custom plans that include everything you need to get your blog up and running, including a domain name and hosting.
Once you have your blog setup, you will need to purchase some plugins like Jetpack or Yoast SEO to help optimize your content and increase traffic. Overall, setting up a blog on WordPress is not as expensive as you might think, and there are plenty of resources available online if you need help getting started.