While nudity in mainstream American culture is generally considered to be sexual, here in Germany, stripping down isn’t uncommon in certain everyday situations. I’ve grown used to nude-by-default saunas; taken dips in pools where swimming suits were birthday suits; and surprised a massage therapist when I disrobed unprompted before a treatment, leading him to remark that Americans usually need to be asked to take off their clothes.
http://www.bbc.com/travel/story/20201108-why-germans-love-getting-naked-in-public