A lot of single 20 & 30-somethings celebrate it. For women who delay serious relationships and marriage while they concentrate on furthering their careers and/or attend grad school or just haven't found their significant other, this is actually a popular way to enjoy Valentine's Day. Long before Galentine's Day was named, I remember one Valentine's Day that I was between boyfriends when I celebrated with my girlfriends. I don't recall exchanging gifts, but there was plenty of chocolate and pink champagne to go around.