I've been in the professional world for 16 years. It is OK to have friends across the spectrum of demographics at work. But some of those same people will apply a double standard outside the corporate walls to segments of the population and/or new social norms/standards they have hangups with. Human nature gives us a lot to overcome.

All that aside, you do need to live in your own generation, too. Include the 20-somethings. Life is a balancing act from A-Z.