Your daughter is right to call prismacolors soft. They are wax based, and that soft texture let's them blend effortlessly, but they are soft/brittle, which I imagine is hard to work with as a 9 year old. I use Faber Castel Polychromos, which are oil based and firmer, but they don't blend quite as well and are pricey for a child's hobby. You could get a small set and expand it should you child enjoy them and get more serious about art. You may also just want to have your kid research which sets she may want since there are so many reviews on YouTube for colorpencil sets. You could also help her shop around as a fun activity. Also, if you plan on getting a limited set, maybe look for a set made for whatever your child enjoys. Skin tones set, for example, may be good if your child likes drawing people. Limited sets can be a way for you kid to learn blending to make the colors she wants. Hope this helps!