Google has announced continued focus on providing search results to the primary used devices–which are mobile devices.
To make our results more useful, we’ve begun experiments to make our index mobile-first. Although our search index will continue to be a single index of websites and apps, our algorithms will eventually primarily use the mobile version of a site’s content to rank pages from that site, to understand structured data, and to show snippets from those pages in our results. Of course, while our index will be built from mobile documents, we’re going to continue to build a great search experience for all users, whether they come from mobile or desktop devices. – https://webmasters.googleblog.com/2016/11/mobile-first-indexing.html
What does this mean? If your website is not mobile compliant you’re in trouble. Static websites built in HTML for desktops will slowly become less prominent in search results (in many ways they already have).
Setting up a new website, however, doesn’t have to be difficult. Many of the websites that still remain non-mobile compliant tend to be simple websites with only basic company information within. Having someone install a CMS of say, WordPress, and using an existing theme that suits your preference, is a quick and easy way to keep your information, have an updated website, and become mobile compliant. Depending on how many content you have, this change could be done within an hour.
So don’t wait any longer!