core + bib (Bibliographic Extension): terms relating to books and bibliography.

requiredMinAge

Canonical URL: http://schema.org/requiredMinAge

Thing > Property > requiredMinAge

Audiences defined by a person's minimum age.

Usage: Between 10 and 100 domains
Values expected to be one of these types
Integer
Used on these types
PeopleAudience

Schema Version 3.3