When creating scripts there is now an option to print the patients Date of Birth on the script, by ticking the option in the script writing screen.
This option will also print the patients age next to the Date of Birth.
For children under the age of 12 this option can be used to print their age on the prescription and will be default selected for these patients.
Restricted Medication will also have this option automatically selected.
This feature was added in R2 October 2017, so updates older than this may not have this functionality.