There are many good reasons for building a web page, but it is important that your goals are clear. 

Your objectives should guide your page design. Many people build home pages as a hobby, purely for their own personal development. Others build them to promote business, social, cultural, humanitarian, or financial objectives. Knowledge of web page development can help you in your career. 

Many businesses today have their own corporate intranet sites, which are simply internal internet systems used to share corporate information. The ability to communicate electronically is a valuable skill to employers.

There is also potential for generating income from the web pages you develop. This is done by publishing interesting pages that attract large numbers of visitors and then selling advertising space, goods or services from those pages.

So, what will be your objectives?

A simple home page that you can use to allow your family and friends to keep up with your daily life?

An information page used as a public service?

An E-Commerce page designed to sell a product or service as a source of income to you?

Or a combination of any or all of the above?

It's your web site and your personal work of art. 
It's purpose can be for anything you desire. But do have a basic outline in mind of your intended goals and purpose before beginning your web site.

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