Like Mrs. Redboots says, for adult it really doesn't matter much. It also depends on discipline--you're fine for singles, especially as you're, by BMI, a bit underweight, in fact. (I'm just barely scraping 5'5" and am in the middle of 'normal' BMI at 134lbs, most of which is muscle. I'd kill to be 105.) You're actually light enough easily for pairs, especially adult where the emphasis isn't on the (dangerous, I think) multi-position overhead lifts. The only trick would be finding a partner tall enough, and at 5'4" it's not like you're a giant. For dance you'd be fine, too. My coach actually approached me because she thought I had a good height and bulid for dance (long legs in proportion to my torso and not so short I can't match a taller man's extensions, which, unless you're Jayne Torvill, can end up hurting a pair--she could STRETCH!) Were you the skater who said you had ballet experience when you posted? If so you sound like you'd have a good build for dance and built-in good extensions already!