Sof Davar – different schools have different rules and when you enter a school, you agree to follow their rules no question about it. I don’t know any High School that allows cell phones. If you come with a phone, you are supposed to turn it off and leave it in your locker. We have already had this discussion here on this blog. However, most schools no longer have pay phones because they don’t want to underwrite the costs. They also don’t allow kids to come in to use the school phone unless it is a real emergency.
As far as driving is concerned. There are suburban schools that offer driver’s ed more readily because it is more necessary in those locations and then there are city schools that have no real reason to do so especially when the parent body are not pushing for it. So when a community allows the kids to drive at 16 and 17, those schools, yes those yeshivas will offer drivers ed at an earlier age and it is up to the parents to decide whether they will allow their kids to take it or not. Personally I did not allow my kids to drive till they were 18. Schools in city areas that have busses on every corner and trains readily available as well as three or four shuls on every block and a grocery/bakery on every corner will not offer the course.