There is no one-size-fits-all answer to this question, as the decision of whether or not to create a Facebook page for your blog will vary depending on the size, scope, and Target audience of your blog. However, there are a few reasons why creating a Facebook page for your blog could be a good idea.
First, Facebook is one of the most popular social networking platforms in the world, with over 2 billion active users. Accordingly, if your blog has a large following on other platforms (such as Twitter or Google+), it could benefit from creating a Facebook page to further promote and grow its reach.
Additionally, by creating a Facebook page for your blog, you can increase interaction with your readers and build valuable relationships with them. This can result in increased traffic to your site and even lead to potential business opportunities.
Ultimately, whether or not to create a Facebook page for your blog will depend on the specifics of your blog and its Target audience. However, if you believe that a Facebook page could be beneficial for your site, it is worth considering doing so.