Child Theme in WordPress has become a standard the past few years for the majority of the developers. The reason is, even if you get a theme full of features and options, there may be something you need that is missing. Indeed, the web is everywhere nowadays and even the most flexible theme will not be able to fulfill every need of every user. And, most probably it isn't designed to do so. That's why its a great idea to create and use a child theme on your website.