‘Put learners first’: Unesco calls for global ban on smartphones in schools::Major UN report issues warning over excessive use, with one in six countries already banning the devices
Putting lots of Smartphones into lockers will probably lead to even more lockers being broken into… those things aren`t exactly safes. Also, not every school everywhere actually has lockers.
I would bet it’s a slim enough minority of students who pay public transport on a per-trip basis that theft would not be from arbitrary break ins. A student would have to (recklessly?) use a high-end phone for this & be spotted putting an uncovered phone in the locker.
The best security is a good insurance policy. Not sure if high-end phones tend to have an insurance policy because I avoid them myself.