In terms of RSS feeds WordPress makes your life easy. They do not even give you the option to turn it on, it is built right in. The automatic RSS feed WordPress offers is just what you need in order to make your blog that much more accessible and visible.
It should be noted that there are some people out there who do not actually want an automatic WordPress RSS feed. As there is no button to turn it on, unsurprisingly there is no choice to turn it off either. There is a way to disable automatic WordPress RSS feeds. It involves delving into code and cutting out certain built in actions, but it is possible if you really think it crucial not to have. You can find a step by step process in the WordPress forums on how to remove the code, should you so desire.
More importantly, however, is why it is so good to have your blog RSS enabled. Really Simple Syndication was actually devised in the late 90s, and has been flying under the radar ever since. There was even a point where people thought it was becoming irrelevant, where Google actually discontinued the use of their RSS reader. But, it is on its way back up, it seems. As technology advances, we are seeing serious trends towards any technology, soft or hardware, that will make life easier. One of the simplest ways for making life easier is to make processes quicker.
That is where RSS feeds come in. With an RSS reader, you collect all of the feeds from your favorite sites, and access them through one single channel. It can be browser based, or a separate program, but it constantly updates with the newest content from your most frequented sites. This eliminates vast amounts of wasted time, clicking back and forth from dozens of sites, and waiting for pages to load, just to see if any new content has been added.
By having your site available in RSS, you are taking advantage of the quick and easy access that your readers love. You are also protecting yourself when your readers decide to access content strictly through a reader, no more opening dozens of pages. You will still be read. You are also putting yourself in the market for people who currently only view content through RSS. You may not have known that you were enabled, but now you know how important WordPress RSS feeds will be in your future.