The amount of repetition within Personal, Portable, Pedestrian was unnecessary and consequentially distracting.

During the parent–child “tug-of-war”, since his mother felt that `understanding the value of money' was a necessary qualification for acquiring a keitai, the child took the initiative of investigating charge plans to persuade his mother that he had adequate financial understanding for keitai use.That, and my penchant for owning things that nobody else around me really does either, it's kinda helped in making me really want to own a Japanese phone. Under these circumstances, they began to carry a keitai to contact their parents when they needed to be picked up from the cram school or train station. This pervasiveness and the particularities of their usage has led to the development of a mobile phone culture, or "keitai culture," which especially in the early stages of mobile phone adoption was distinct from the rest of the world.

However, looking at published figures regarding crimes against children in the 25 years from 1980 to 2005, the percentage of children under the age of 15 murdered and the overall mortality rates decreased (Ministry of Health, Labor and Welfare, “vital statistics”); in other words, there was no apparent decrease in statistical levels of “child safety”. In short, although popular, the keitai did not become a necessity item—originally, it was an item that could be done without.It's just that Orange apparently have the best 2G coverage in the country and half of my family is on the network, so it'd be most convenient, but I don't want to start a new contract and have a phone I can't use.