No, we were all mini-er than mini, and then long and flowy when that was fashionable. ISTR we went to Church in uniform on a Sunday morning, but then changed into our Sunday dresses for the rest of Sunday, exeats normally happening on a Saturday. We could - but few people did after about Year 8 - wear or own pattern summer dresses in the dinner ten. At first these had to have sleeves but then the headmistress - who did try very hard during what must have been a tricky difficult time to be a had teacher of a girls' boarding school - announced that she had seen that none of this summer's dresses had sleeves, so sleeveless was fine.