According to the AAP EVERYONE NEEDS TO WEAR SUNSCREEN AND TO OTHERWISE PROTECT THEMSELVES FROM THE SUN. In 1998 the AAP recommended total sun protection for EVERYONE.
http://www.newswise.com/articles/aad-recommends-total-sun-protection
http://www.aad.org/media-resources/stats-and-facts/prevention-and-care/sunscreens#.Ub4Civk3uSo
It was after the AAP recommended total sun protection for everyone that life became easier for people with photosensitivity. Sun protection products started to proliferate and people no longer needed long winded explanations for why someone was reapplying their sunscreen or wearing a hat. There are a number of conditions that cause photosensitivity.
http://arthritis.about.com/od/arthritismedications/a/sun_sensitivity.htm
http://www.questia.com/library/1G1-18317966/chemical-photosensitivity-another-reason-to-be-careful
Whatever the cause of the photosensitivity, the treatment plan will probably involve sun protection.
Being more photosensitive than the rest of the population can require doing a little more (higher SPF on the sunscreen or longer hours of sun avoidance). But it no longer makes people with lupus appear to be unique. In fact, in 2013 when someone asks a person with lupus (or some other photosensitive condition) why they are wearing sunprotective gear, a great response is, "Why aren't you wearing sunprotective gear?" It has been advised for everyone and it easily available.
http://www.lupus.org/webmodules/webarticlesnet/templates/new_newsroom.aspx?articleid=3940&zoneid=8
http://www.thelupussite.com/fact12.html
http://www.everydayhealth.com/lupus/sun-exposure-and-lupus.aspx