Generally the bosses of the design firm are fine with responsive design. Good responsive designs take more effort. More effort == more billable hours. You also have the chance to up-sell existing clients. It's a win-win all round if you have the skills to do it.
The current problem is persuading the client that a responsive design is worthwhile. I still regularly encounter folk who don't understand the number of folk looking at the web using mobiles - let alone the necessity to design something to work on a variety of displays and contexts.
This is getting easier as more people interact with the web with more devices. Once folk actually use two different kinds of device to look at stuff online selling responsive solutions becomes much simpler. When it gets to three or four it sells itself.
The current problem is persuading the client that a responsive design is worthwhile. I still regularly encounter folk who don't understand the number of folk looking at the web using mobiles - let alone the necessity to design something to work on a variety of displays and contexts.
This is getting easier as more people interact with the web with more devices. Once folk actually use two different kinds of device to look at stuff online selling responsive solutions becomes much simpler. When it gets to three or four it sells itself.