The Druidcraft cantrip allows for a number of effects, and while many of them could be seen as mere “flavor”, some have identifiable practical uses as well. Predicting the next day’s weather has obvious uses, for example. Likewise, there could be value in making small sensory effects, just as there are with minor illusions. And the ability to light or extinguish a small flame (including a campfire) has obvious uses as well. With a little creativity in the right situation, even the “flavor” uses could have a practical application as well.