For some age conscious,  yes.  But for some, it is not.  As long as you are in love and understand  each other, age is no longer an issue.  There are girls and guys who choose older men or women because for them older men and women are more matured and experienced in some things.  We cannot teach our heart whose to love.  If our heart choose the one older than I, we follow our heart most of the time.  Age is should not be an issue in a relationship as long as they are single and free.