This topic has come up recently on alt.arts.ballet, & the consensusthere is that one may still be physically attacked if it's knownthat you do ballet. Eddie Villella used to get, & give, black eyes& bloody noses when he was a boy, & the situation hasn't changedgreatly in the last half-century. Adolescent boys can be very insecure sexually, & they are likely to vent this insecurity onanyone they perceive as insufficiently masculine. Not nice, butunfortunately still all too prevalent.
Ballet plus martial arts would be artistically good & good forpurposes of self-defense as well. I'd go for it.
Tom Parsons