Firstly I don't use the word hysteria. Secondly you are the one becoming aerated about this issue, not me.
You clearly don't understand how modern families lives are arranged. Perhaps your child goes straight to and from school every day. But that's not how every family lives.
Where families have variable arrangements that involve interconnected transport (car sharing or collection from different places) this can only happen if changes or disruptions can be communicated. If you remove the means to communicate, some children would have to say no to various activities that get arranged at short notice, including revision sessions and school clubs, in order to get to their usual collection point at their usual time.
It isn't 1986, it is 2026. The average distance travelled to school has increased, the provision of school buses decreased, the provision of public service buses decreased, the reliability of all public transport decreased, the use of cars increased, the use of car sharing between families increased, the number of families with both parents working increased, the number of families with kids at schools with non-aligned start/end times increased, the range and location of after school activities different, the education leaving age increased, plus a myriad other subtle societal changes.