Well, in Finland at more general type platforms mobile users are covering 90 % or more. And I’m quite sure the situation is same at all Nordic countries.
The most alarming thing is the most of mobile users are used to bad user experience.
I kind of hate to say this at loud, but the biggest issues here are coders working with big multi screens. Even here we can find a lot topics where everyone are worrying how two or three sidebars are done 
The majority of themes are planned to 21 inch screens. I’ve lifted the cat on the table, of showing the well known elephant on living room, saying that I’m counting every theme, component or plugin that is big screen only as a broken one. That isn’t liked too much