Anyway, that's just theorycraft. In my game, the Mage (7th level with a few extra spell slots from magic items) uses ray of frost multiple times in every combat. He also has the read magic cantrip, which he has used twice in the entire campaign (and that's only because of generous DM interpretation, like letting him read writing on magic items to get clues as to their function).I don't understand what you're saying here (and I disagree that D&D is a "storytelling game," but that's for another thread). Maybe I'm not making my point clearly enough.
Yes, there are circumstances where a player will not take the superior option. But that does not excuse the fact that there is a superior option. If you're a game designer, expecting players not to take the superior option is insane. This is called "dominant strategy," and it's a well-known principle of game design, and the foundation of game balance. What I am trying to say is that I don't think the cantrips are balanced (and I think it's weird that no one seems to agree with me, because it looks so obviously broken to me).
Sure, there's a good reason why you might take minor illusion over ray of frost. But why would you take shocking grasp over ray of frost? Why would you take dancing lights over light? Why would you take read magic at all?So you agree that not a mage who doesn't take ray of frost is playing poorly? If so, why do you acknowledge that the balance is poor, but not agree that it should be fixed?