lowerBound
The minimum age in the person’s declared age range.
Declaration
var lowerBound: Int?Discussion
When this value is nil, the person’s age range is below your lowest specified age, indicating they are under your minimum age requirement. When the value is present, it represents the lowest age that the person meets or exceeds.
For example, if you specify ageGates of 13, 16, and 18, and receive a lowerBound of 16, the person is at least 16 years old, but may or may not be 18 or older.