There are a few reasons why hosting may be necessary for a blog. The first is that a blog requires a hosting service in order to function. Without hosting, the blog would not be able to store any data or files. Additionally, hosting can help to protect the blog from being taken down or altered by a third party.
If the blog is hosted on a server owned by the blogger, then that blogger has more control over what happens to the site. However, if the blog is hosted by a third party, then that third party may have more control over the site.
There are also some disadvantages to hosting a blog. The first disadvantage is that hosting can be expensive.
If the blogger does not have access to a server or has limited resources, then hosting may be out of reach. Additionally, if the blogger experiences technical difficulties with their blog, it can be difficult to solve these problems without help from a hosting provider.
Ultimately, it is up to the blogger whether they want to host their own blog or not. If they choose not to host their blog, they may experience technical difficulties or their site may be less secure than blogs that are hosted by third parties.
However, if the blogger does choose to host their blog, then hosting services offer numerous advantages and disadvantages that must be considered before making a decision.