If a website isn’t mobile-friendly, 50% of users will use it less

Mobile device usage has skyrocketed in the last couple of years. This means optimizing website content to fit a small screen has become standard practice. Judging by this statistic, if your website isn’t cutting it on mobile devices, not even the quality of your products and services can save you.

Source:
https://www.thinkwithgoogle.com/advertising-channels/mobile-marketing/what-users-want-most-from-mobile-sites-today/