@squirk - I agree with everyone that advance preparation is important and on the other hand - she’s what, 14? I can’t tell you the number of times I have heard of a dedicated arts kid going through a performing arts high school and coming out deciding that was enough and heading in a different direction. I’d say straddle the fence - know what she needs to do to prepare for auditions / admissions and let her choose whether she does all of it and when. Let her have her high school career as she chooses (within limits) and you won’t end up feeling like you pushed her too early or too hard. Be supportive but let her drive.
If she’s a good student that is WIN-WIN-WIN so make sure you support that too. WIN in she will walk away from High School with a good education; WIN that she’ll qualify for merit aid at many schools and WIN that she’ll be prepared to apply to schools such as NYU where the academic record is weighted as heavily as the audition.
BTW, my kid’s dream school from elementary school on was Tisch, she is a rising junior there, she spent her foundational years in NSB and every year we are more grateful and happy that she ended up where she truly belongs. Sometimes the dream school works out! 