Drawing attention of the users

A website without icons can be quite boring. Imagine a magazine without images, how boring would it be? It's the same logic for icons within websites. Furthermore, with beautiful icons, you are adding more aesthetics to your website, while your users will appreciate you for the convenience:

See this screenshot taken from the PayPal website with icons compared to the following one where we removed the icons:

The first one is definitely more interesting and engaging to read than the second one.