[CameronNemo]

I don't think showering is the one that is considered hard. It is the "develop a compelling personality" and "make friendships with interesting people" items that are most challenging. IME "compelling personality" is difficult to define, different for each potential partner, and often has to do with humor. The challenging bit is that some aspect of your personality that you care about a lot (love of math, plants, or music) might not matter to someone else. And humor can just as easily be hurtful as it can heal. Some jokes just land terribly.