If you are interested in advertising and remarketing, you can enable the Demographics and Interest Tracking inside the Analtify.
In order to enable this.
After enabling the Demographics and Interest inside the Analytify, it's time to enable it from the Google Analytics account.
Login into your Google Analytics account and select the Website where you want to enable this.
After selecting the website go to the Auidence>Demographics>Overview and inside the Overview it will ask you to enable the Demographics and reports so click on the Enable button
You will receive your Congratulations! message