Seems the schools didn't make good decisions because they feed the kids what they want and gave them the choice of bad meal a or bad meal b. Kids are dictating the menu not responsible adults.
1. Kids should not get a choice.
2. Kids should be properly supervised at table when eating.
Practices used when I was at school.
If the schools and staff started doing the right thing rather than the expedient thing this situation would not be necessary, education should extend to teaching about good nutrition, it would teach much more than the other things they pretend to teach in the schools.