Seriously?  Are we living in the 60s again?  Anyone who could be remotely offended by such things is perfectly able to choose not to patronize those establishments.  Conversely, those people who do will already know what to expect and in the vast majority of cases look forward to it. 

I fail to understand the justification to ruin the enjoyment of 99% of patrons just to avoid offending the 'sensibilities' of a rare over-sensitive few, who have the free will to not put themselves in such a position as to be offended in the first place.