While young children may not be coffee -drinkers like their parents; they can get a surprising amount throughout the day from fizzy drinks like colas and from chocolate. This matters, as there is some evidence suggesting small doses of caffeine taken throughout the day can have as much effect on anxiety level as a single big dose. Other researchers found even a little bit of caffeine can turn up the volume on someone’s response level to ordinary stressful events. So children are who tend to be more anxious than most may fell better without any caffeine at all.