i just ask this 質問 because i had a friend dare me to write in cursive for a week. i've been doing it and the kids who grade my paper at school have no idea how to read it so i just wondered.
Most people prefer to write like this so others can read it, i myself can read and write in cursive but i choose to do it this way. it's not really out of style, adults do it もっと見る then kids because they have important jobs where they have to write grammer like that so they won't get fired.