Have you asked yourself this question? I have. It is a good question to ask yourself as it will save you time later if you decide to monetize your website.
Many people create a blog only for fun. To share their personal thoughts and lifestyle, to family vacations. This is A-okay with me.
Monetizing your site should always be an option to you. Writing a blog for money. You should keep this possibility in the back of your mind when you create your blog. Deciding on what the purpose of your blog is going to be is very important.