Stinky bellybuttons? Must be a southron thang. Here up North we have running water and indoor plumbing and take these things called 'showers' and 'baths'.
free dixie,sw
Given the malodrous subway I experienced on my recent trip to New York, one certainly wouldn't think so.
Also, come to think of it, here down south we have these things called toilets. Based on the stenches of New York City and Boston, one is inclined to believe that y'all have substituted that wholly practical device with the nearest sidewalk.