According to Google –
About demographic targeting
With demographic targeting in Google Ads, you can reach a specific set of potential customers who are likely to be within a particular age range, gender, parental status, or household income.
For instance, if you run a fitness studio exclusively for women, demographic targeting could help you avoid showing your ads to men.
Before you begin
Keep in mind that demographic targeting is an option to narrow your targeting. In other words, it helps prevent people outside of your chosen demographics from seeing your ads.
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