I feel like I need to not get my 11year old the pricey hair straightening procedure she wants.
Why don't you want to get your 11 year old the pricey hair straightening procedure she wants?
Her hair is too long and she can't manage it well.
You should help out your kid. If they really want that procedure, you should give it to them because it will allow them a chance to learn how to manage their desires.
I'm going to do other things for my kid cause this isn't a big deal.
The hair styles these days are a huge deal with these kids. Just doing this and not doing all of the other things will still make her day. She will have to compromise too, not just you.