The issue is that parents need to take the active approach to teach girls to be what they want and not follow the fashion.
DD is now 16 and dresses mainly in hoodie and jeans/joggers at home as she has to wear full business dress at 6th form. She like to dress up, wears make up and has a jewellery box overflowing as well.
She is an Explorer Scout and spend many weekends in the mud, camping in autumn/winter, loves watersport but also plays theatre, dances and enjoys sparkly costumes.
When she was small we dressed her for comfort, waterproof coates, good shoes, proper boots in winter so she could play outside and stay warm.
Yes, she also had sparkly sandals, white and pink trainers and pretty dresses.
We treated her like a child, not necessarily a girl, by enabling her to play with what she wanted. We dressed her like a child, not a doll or a mini-adult.
I think parents are too afraid of letting girls play rougher and they are not given the equipment to play safely. These tiny ballerina shoes don't work if you are running and playing catch. So the girls will sit down and not be active.
I remember plenty of playground visits where girls where told not to do something on the climbing frame or to be more careful on the swing.