No rolling up of my school skirt but for a different reason - I was tall and very skinny and the approved school skirt which fitted my waist was nowhere long enough to reach my knees. After receiving several 'red cards' for uniform irregularities my mother marched into the headmasters office with the size chart from the outfitters and asked him what she was supposed to do with me, as despite feeding me generously I only grew upwards not outwards...
those were the days .I never got another'red card' so something must have been agreed. My DD had the same problem, approved school trousers that were long enough were a 32"waist, she managed to attain a 23" waist by the time she left.