OP - you'll love the results when your DD gets her braces off and has a beautiful smile. All worth it!!
I swear, all kids have braces today as part of the status game we all have to play - if you want your kid to go to the best colleges, and have a professional job with medical and retirement benefits, you must have perfect straight teeth. How many of us have doctors, lawyers, bosses, financial investors, etc who have a mouthful of crappola teeth? Probably not many, if any at all. You MUST have that great smile (or at least "good enough") to enter and stay in the professional world nowadays.
I pity the child who goes to their first job interviews with a mouthful of unattractive crooked teeth (I was that kid, sadly

). Since almost every kid gets braces and has great teeth, the unsightly unattractive ones stand out, badly. Our society has come to the point where your teeth show your class, and crooked ugly teeth are associated with being poor and "inferior".
My career went nowhere when I had a mouthful of crooked teeth. It defined my whole appearance and messed with my speech, unfortunately. I finally fixed them in my 30's (paying almost $10,000 with no insurance and going into debt to do it). Now in my 40's, I can clearly see I lost so much potential income back when I couldn't land a professional job that I will never catch up now (aka I will never retire). It haunts you - if I had a better appearance, things would have been very different.
Fortunately I think nowadays just about everyone understands the connection between teeth and potential careers and earnings (my parents still don't get that one

) so parents will do whatever it takes to get that great smile for their kids.