Japanese Skirts

Up until now, many Japanese school girls have been rolling up their standard issued skirts as they thought it looked cute. This could be a thing of the past as more girls are now starting to think that short skirts look very untrendy. The image below shows the default length on the left and how it looks in mini skirt form on the right

A few reasons/theories for this long skirt boom are given.
-Osaka's way of going against the short skirt school girls in Tokyo.
-Dont have to spend so much time restoring skirt to original length when warned by the teachers.
-Dont want to get sunburnt legs.
-Girls started to adore the looks of an Ojosama school in Nara. Ojosama is a bit like what Nogizaka Haruka was.

At Itai News you can see another pic of school girls with long skirts on which look nice.
Among the comments, there are also many voices saying that longer skirts look better too.