It didn't though, did it?
All young people dealt with situations like this one way or another before mobile phones. Sometimes they used a payphone. Sometimes there wasn't one. Sometimes mums panicked for hours and kids cried.
Young people these days suffer much more anxiety, failure to launch, difficulty coping with life than previous generations.
I know this is multi faceted and life is very different now. I do not think this is all down to the use of mobile phones. I do think it is partly because of the use of mobile phones. I am not alone in this theory. As anyone who has read Haight will agree. I believe young people today experience less risk in their lives than they previously have, and this has contributed to less resilience. For me, having a child make their way to school without a phone is an acceptable level of risk. And the benefits of having a phone free school are worth the inconvenience of not being able to arrange things with such spontaneity. Others may make separate calculations and I hope you can all find a school that meets your families requirements.
I'll leave you all to it now as I'm bored of being told I've no business advising ( I'm not, I'm sharing my opinion ) that I'm narrow minded, I'm a liar, I'm irrelevant etc. It's an internet discussion, we all have opinions and an equal right to share them.