Not so long ago everyone had come to realise that to get with the trends you need to have amobile friendly website.
What used to be a trend is now a critical requirement for websites. Basically, if your site is not mobile friendly then Google will push you down in the search results and will give priority to sites that are, for the given search term, mobile friendly. In other words if someone searches for, say accountancy service Coffs Harbour, then if Google finds two sites in Coffs that are relevant to that search term, it will position the mobile friendly site higher than the old type site. It goes beyond that of course because these days more people use mobile phones and tablets to search for stuff, so your site has to be usable when they tap the link.