In a brief delusion of affluence, I took DD(3) into Laura Ashley yesterday to try on summer dresses.
The largest size in stock was age 7-8. It was too short, by some considerable length.
DD is tall, but not freakishly so. She wouldn't, for example, be mistaken for a Yr3 child.
Her current wardrobe ranges from age 3 (Frugi) to age 8 (Sainsbury school dress).
AIBU to think this is bonkers? I've found little girls' clothes to be the worst for random sizing, although baby/boy/womenswear are all guilty too.