I hear that a lot, but practices, girl scouts, games, etc. are NOT new things to students! And somehow, they've survived before without cell phones. I mean, I was in marching band, choir, drama club , plays OUTSIDE of drama club, literary clubs, SADD, and French Club. Yet somehowI managed just fine without a phone on my hip.
Typically, if you are at a place with a BUILDING, there are phones. If you are at a person's HOUSE, there are phones. Hell, in this day and age, if you are with even ONE adult, there are phones. So those type of things don't really sell me on the idea that cell phones are necessary for children. The only way I think it might be ACTUALLY necessary is if they are frequently at places where's phones are inaccessible, like public transportation, which has already been addressed.
Now, I'm not saying I'm against phones. I think they are great to introduce a little bit of responsibility. I just don't buy that they are NECESSITIES just because a child participates in extracurricular activities.