The Monster Manual lists certain creatures as Evil. For example the Duergar, or Grey Dwarves, are Lawful Evil. Is a Duergar baby evil?
Here's the situation: A Duergar child is born to the king and queen of the Duergar realm, however the baby has the skin color of a Mountain Dwarf. Ashamed by their miscolored infant, and aware that this could lead to their downfall if it were to become known among their subjects, the Duergar king and queen leave their infant child in the wilderness to meet its fate. Unbeknown to the Duergar royals, the baby is taken in by a Mountain Dwarf clan leader to raise as her own child.
It so happens that this clan leader employs a wizard who has cast Glyph of Warding on each post of the clan leader's stone bed frame. The Glyph is set to trigger if an evil creature enters the bed chamber.
Question: Noting that infants, and particularly infants of humanoid species (as opposed to fiends and other monsters), regardless of race and heritage, and even regardless of their own fate, have the potential to grow up to be any alignment, and that infants are not yet capable of either evil thought or action; and also noting that in this specific case the baby would not yet have been influenced by her adopted mother, according to RAW would the glyph be triggered by this Duergar baby?
In other words: According to RAW are humanoid infants of an evil species necessarily evil as infants and would they trigger this glyph of warding?