Icons can be a pain when it comes to web design. Designers who haven’t been in the game for long might not have picked up the basic illustration skills that more experienced designers use to create their own icons suited to a project. Similarly, more experienced designers just might not have the time to create a new icon set for every project.
On top of all that, it can be difficult to make sure your work looks different when a combination of current design trends and your own signature design style limits your options. Using great icon sets, available for free, is one way to reduce the similarities between your projects and make them stand out on their own.