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According to the fifth edition spell text, Wall of Force

[...] can't be dispelled by dispel magic.

Is there an in-world reason why this is the case (for any D&D setting)? Why can Wall of Force and Forcecage, uniquely among all spells, not be broken by Dispel Magic?

According to the fifth edition spell text, Wall of Force

[...] can't be dispelled by dispel magic.

Is there an in-world reason why this is the case (for any D&D setting)? Why can Wall of Force and Forcecage, almost uniquely among all spells, not be broken by Dispel Magic?