Why Install WordPress
If you're putting up any kind of small site or blog, WordPress is the easiest, best developed method for a non-technical person.
Because of its widespread use, many developers have created plug-ins (95% are free) that automate most everything you will ever want to do with WordPress. Therefore, you need almost no technical knowledge in order to be a facile blogger or maintain a website that looks like any standard HTML site.
Another reason to install WordPress is that the Google search engine apparently finds it very easy to crawl. That results in your posts and your blog being readily indexed by Google.
WordPress comes with tons of built-in functions so that anything you likely want to do is already included and you don't need to create it. If there some task you don't know how to do, just do a search on Google and within minutes you'll find somebody who has already answered your question.
Because widespread installation of WordPress, there are thousands of themes i.e. designs available free and some that do cost although prices are small. Therefore, all you need to do is supply the content and you can select an already existing beautiful design that somebody has worked hours to create.
Actually, you don't even need to create the content if you don't want to for your blog. There are many plug-ins that allow you to lift articles from article repositories and include them in your WordPress-installed blog automatically without writing a word. Although this is not recommended if you want to have a unique site, it gives you an idea of to the extent that WordPress is automated to make it easy to maintain a small website or blog.
When you install WordPress, you will place it on a server that you rent from a hosting company. Some of the better hosting companies such as bluehost.com, have a one button automated script that permits you to install WordPress on the space that you rent from them. Again, just one more reason to install WordPress to make your life very easy on the web.
Last, should you need something terribly custom that no one has thought of before (i.e. a solution that does not already exist), WordPress is programmed using php, probably the mostly widely known programming language among programmers so that you can hire a tech expert for say $10 an hour (or less) on odesk.com who can quickly and competently customize anything you need.
There you have it. An overwhelming number of reasons to install WordPress.