When creating a new awareness Google Video campaign,why should you keep the two audience solutions of Demographics and Detailed Demographics and Custom Audiences separate?

Keeping the audience solutions of Demographics and Detailed Demographics separate from Custom Audiences ensures that the reach of the campaign remains broad and not overly restricted. When you combine too many specific audience targeting methods in a single campaign or ad group,the potential audience can become too narrow.This can significantly limit the number of people you can reach with your video ads.By keeping these audience solutions separate,you maintain the flexibility to reach a wider audience with the Demographics and Detailed Demographics,while also being able to target specific groups more precisely with Custom Audiences.