From 2.9.0 Age Gate is available as a shortcode on top of the standard overlay. The shortcode can have its own age declared for the content it wraps, choose the input type per usage and its title.
[age-gate age="21" title="Restricted content" type="buttons"] <!-- your restricted content --> [/age-gate]
|age||A numeric value for the users age. Defaults to the min age setting in restrictions|
|title||A copy line to show when restricted. Defaults to the subheading message. For no title, pass
|type||They input type to display. Allowed options are inputs, buttons or selects. Defaults to the main settings option|
Note: The shortcode version does not trigger hooks like the main version at this time and cannot be extended.