totally agree, but it's the world we live in, in the us guns are legal so people carry them and occasionally use them, to protect themselves, but equally any pe4rson with evil intent can legally carry one,
i'm not saying we shoulden't have knives i'm just saying the older you are the more responsible you are, i remember when i was 13 i found a discarded butcher knife which i subsequently used for bushcrafty stuff, i felt fine about carrying it about. question is:
would you be happy with a 13 year old boy carrying around a butcher knife in your local woods? because that's what i did and at the time thought it was ok, also i remeber when i was 15 buying a "survival knife" (underage) i had a friend that bought a Kbar replica, which i'm sure was never intended for cutting wood, and another friend at school bought a machette to school, this is all under the age of 16!
as a parent i would be very concerned if i knew kids had knives at my kids school, not only because they can be missued fallen on, fought with but i believe kids should be around a resposible adult if they are going to be using potentially dangerous tools, same as they are in a craft lesson.
the thought that a kid under the influence of drugs anger, alchohol ect could kill my son or daughter or any other which is aparently on the rise is enough reason for me to restrict the availability.
in my mind it has nothing to do with "bushcraft", as bushcraft is on the whole set in woodland or wilderness areas, or certainly out of the public eye, where you would be frowned apon for not having a knife.