I wonder if I get this right, but maybe the reason the uniform needed a iron is because she is one of that girls who runs late with a toaster in the mount and bump in someone at end, thus leaving the clothes wrinkled
I think it's about those anime girls that seems to have uniforms that are exactly their body shape where it's super thin on the waist and the uniform chest area is perfectly prominent and shaped just like their bazoongadonkahoolabaloo