To answer some points: the “30 items” refers to all the options across the full age range, 4 years to adults. Each age range has a couple of t shirt options (short/long sleeves) a hoody/sweatshirt type jumper, shorts or trousers. The rainbows and brownies get the option of a gillet. All sections have the option of a hat and a sash. For Rangers (14+) and adults there is a smart shirt option.
All you need to be “in uniform” is a t shirt (£12 for Brownies and £14 for Guides). There is no deadline to swap over to the new style. Most leaders have a box of second hand items and this will continue.
I’ve been a leader for more years than I care to remember and this new design (made after lots of input from girls and adult members) seems very practical and looks pretty good too.
With a smart skirt or trousers (we ask girls to wear their school ones) it will look smart when needed (most units attend just one or two parades each year) and is practical for all the other stuff- imagine hiking, climbing, sports, fire lighting, games, pioneering wearing their school ones old style “smart A line skirt” stiff blouse or little brown dress….
Surely we don’t expect girls and young women to dress like that anymore?