Schools and the education system seem to be masters at creating new problems and their perceived solutions to them.
Recently, the Welsh Government has been pushing 'healthy' lunch boxes for kids.
Seems great, until you realise (a) fat is now accepted as much less of a problem than the nanny state has been claiming for 30+ years (b) there is no actual law covering packed lunches (yet!), contrary to 'suggestions' that there is by the authorities and (c) custard and sugary puddings are on offer every day at the school canteen!
The inevitable response to chocolate bans has been substitution with 'fruit' bars.
Have a look at the side-by-side comparison of a very run-of-mill chocolate finger bar with a very run-of-mill 'fruit' bar. The case seems dead in the water from the outset. But at least the authorities can now start preaching about something else - salt.