DD is 8, will be 9 in spring. She takes after DH who is well over 6ft tall, she's already up to my shoulder & in a size 2 shoe. Average build for her height. I did the the annual overhaul of her clothes yesterday, horrified to discover she is already wearing age 10-11 & some 11-12 clothes that I'd bought last year. The 9-10 stuff is too short. But most clothes the size she needs are much more "grown up" in style than she likes. She still likes typical little girl clothes, she mostly prefers pink & sparkly unicorns etc on her clothes, bright colours etc, not teenage type designs & dark colours. Prefers dresses in jersey fabrics or leggings rather than trousers (she has ASD, it may be a textural thing).
Also, we're not well off - H&M used to be our go-to but they do very little that appeals to her now. I get her the Joules dresses but only at sale time. She's allergic to wool. And we're nowhere near London.