Mobile phone ban on overseas school trip

[anotherglass]

12 year old son is due to go on his first overseas school trip to Belgium later this month.

There is a strict ban on children using mobile phones during the trip.

Part of the trip will involve a period of up to 2 hours where children will be allowed to wander around an open, retail precinct - unsupervised. Teachers will not be far and kids will have cards - in the local language - to hand to someone if they are in trouble, during this activity.

Parents were not made aware of this unsupervised element of the trip, prior to making payment.

I am nervous not only about this element, but also the fact that there is a heightened risk of terrorists attacks during the period of the trip, which coincides with Euro 2016.

AIBU to insist on son being allowed to take his mobile phone on the trip?

At the risk of going on a bit, because I've bought the T shirt on this subject , the anguish of getting no response on a mobile when you know your child is actually in danger, is horrible. I think the school's decision is based on sound reasons .