I'm curious about this
30 years ago, when I was at school, I developed a large bust and my DM had to resort to plain ladies' white blouses (some did have white stitching of flowers - which was hidden under jumpers) as school blouses then were a slim fit. She bought them in charity shops
I believe that this has not changed. Why do school uniform manufacturers forget that the last 3-4 years of girls' compulsory education that they develop on the top half and not really accommodating the busty girls?
Where do you buy your school blouses for your busty DDs from? My friend's DD will be starting high school in Sept 2026 and already got some breasts forming. At least she can wear polo shirts at primary school.